Same issue here, suddenly running slow. Would love your advice LexSchellings! Here's my EtreCheck report.
EtreCheck version: 2.1.8 (121)
Report generated February 4, 2015 at 12:52:21 AM EST
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
MacBook Pro (13-inch, Mid 2012) (Technical Specifications)
MacBook Pro - model: MacBookPro9,2
1 2.5 GHz Intel Core i5 CPU: 2-core
4 GB RAM Upgradeable
BANK 0/DIMM0
2 GB DDR3 1600 MHz ok
BANK 1/DIMM0
2 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en1: 802.11 a/b/g/n
Battery Health: Normal - Cycle count 344
Video Information: ℹ️
Intel HD Graphics 4000
Color LCD 1280 x 800
System Software: ℹ️
OS X 10.10.2 (14C109) - Time since boot: 0:12:42
Disk Information: ℹ️
APPLE HDD HTS547550A9E384 disk0 : (500.11 GB)
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk1) / : 498.88 GB (406.46 GB free) - 5 errors
Encrypted AES-XTS Unlocked
Core Storage: disk0s2 499.25 GB Online
MATSHITADVD-R UJ-8A8
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Apple Computer, Inc. IR Receiver
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. Apple Internal Keyboard / Trackpad
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
Mac App Store and identified developers
Launch Agents: ℹ️
[loaded] com.oracle.java.Java-Updater.plist [Click for support]
[running] com.symantec.nobu.client.plist [Click for support]
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist [Click for support]
[loaded] com.oracle.java.Helper-Tool.plist [Click for support]
[loaded] com.oracle.java.JavaUpdateHelper.plist [Click for support]
[running] com.symantec.nobu.nobud.plist [Click for support]
User Login Items: ℹ️
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Internet Plug-ins: ℹ️
Flip4Mac WMV Plugin: Version: 3.2.0.16 - SDK 10.8 [Click for support]
FlashPlayer-10.6: Version: 16.0.0.296 - SDK 10.6 [Click for support]
QuickTime Plugin: Version: 7.7.3
Flash Player: Version: 16.0.0.296 - SDK 10.6 [Click for support]
Default Browser: Version: 600 - SDK 10.10
AmazonMP3DownloaderPlugin101750: Version: AmazonMP3DownloaderPlugin 1.0.17 - SDK 10.4 [Click for support]
Silverlight: Version: 5.1.30214.0 - SDK 10.6 [Click for support]
JavaAppletPlugin: Version: Java 7 Update 71 Check version
User internet Plug-ins: ℹ️
WebEx64: Version: 1.0 - SDK 10.6 [Click for support]
3rd Party Preference Panes: ℹ️
Flash Player [Click for support]
Flip4Mac WMV [Click for support]
Java [Click for support]
Time Machine: ℹ️
Time Machine not configured!
Top Processes by CPU: ℹ️
5% WindowServer
0% fontd
0% notifyd
0% SpotlightNetHelper
Top Processes by Memory: ℹ️
253 MB com.apple.WebKit.WebContent
159 MB ocspd
77 MB Safari
69 MB mds_stores
56 MB WindowServer
Virtual Memory Information: ℹ️
1.31 GB Free RAM
1.94 GB Active RAM
360 MB Inactive RAM
679 MB Wired RAM
871 MB Page-ins
0 B Page-outs
Diagnostics Information: ℹ️
Feb 4, 2015, 12:36:18 AM Self test - passed
Feb 4, 2015, 12:26:31 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-002631_[redacted].crash
Feb 4, 2015, 12:24:49 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-002449_[redacted].crash
Feb 4, 2015, 12:24:26 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-002426_[redacted].crash
Feb 4, 2015, 12:24:08 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-002408_[redacted].crash
Feb 4, 2015, 12:23:51 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-002351_[redacted].crash
Feb 4, 2015, 12:23:33 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-002333_[redacted].crash
Feb 4, 2015, 12:23:15 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-002315_[redacted].crash
Feb 4, 2015, 12:22:58 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-002258_[redacted].crash
Feb 4, 2015, 12:22:37 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-002237_[redacted].crash
Feb 4, 2015, 12:21:19 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-002119_[redacted].crash
Feb 4, 2015, 12:21:01 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-002101_[redacted].crash
Feb 4, 2015, 12:20:44 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-002044_[redacted].crash
Feb 4, 2015, 12:20:24 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-002024_[redacted].crash
Feb 4, 2015, 12:20:00 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-002000_[redacted].crash
Feb 4, 2015, 12:19:42 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-001942_[redacted].crash
Feb 4, 2015, 12:19:25 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-001925_[redacted].crash
Feb 4, 2015, 12:19:02 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-001902_[redacted].crash
Feb 4, 2015, 12:18:06 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-001806_[redacted].crash
Feb 4, 2015, 12:17:49 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-001749_[redacted].crash
Feb 4, 2015, 12:17:32 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-04-001732_[redacted].crash
Feb 3, 2015, 07:10:28 PM /Users/[redacted]/Library/Logs/DiagnosticReports/iPhoto_2015-02-03-191028_[reda cted].crash
Feb 3, 2015, 04:11:20 PM /Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2015-02-03-161120_[ redacted].hang
Feb 3, 2015, 10:13:27 AM /Library/Logs/DiagnosticReports/ocspd_2015-02-03-101327_[redacted].crash
Feb 3, 2015, 10:09:20 AM /Users/[redacted]/Library/Logs/DiagnosticReports/Norton Online Backup_2015-02-03-100920_[redacted].crash
Feb 2, 2015, 11:54:19 PM /Users/[redacted]/Library/Logs/DiagnosticReports/iPhoto_2015-02-02-235419_[reda cted].crash
Feb 2, 2015, 11:39:22 PM /Users/[redacted]/Library/Logs/DiagnosticReports/iPhoto_2015-02-02-233922_[reda cted].crash
Feb 2, 2015, 10:19:08 PM /Users/[redacted]/Library/Logs/DiagnosticReports/iPhoto_2015-02-02-221908_[reda cted].crash
Feb 2, 2015, 09:53:38 PM /Users/[redacted]/Library/Logs/DiagnosticReports/iPhoto_2015-02-02-215338_[reda cted].crash
Feb 2, 2015, 09:14:37 PM /Users/[redacted]/Library/Logs/DiagnosticReports/iPhoto_2015-02-02-211437_[reda cted].crash
Feb 2, 2015, 07:52:27 PM /Users/[redacted]/Library/Logs/DiagnosticReports/iPhoto_2015-02-02-195227_[reda cted].crash
Feb 1, 2015, 02:23:34 AM /Users/[redacted]/Library/Logs/DiagnosticReports/Norton Online Backup_2015-02-01-022334_[redacted].crash
Feb 1, 2015, 02:17:08 AM /Users/[redacted]/Library/Logs/DiagnosticReports/Norton Online Backup_2015-02-01-021708_[redacted].crash