Macbook Pro (MC700LL/A) Very quiet sound in right speakers from AUX jack.

I don't think it is hardware related, because I was just playing Hotline Miami and my sound suddenly became extremely quiet in the right ear.

I checked and it happens with all of my headphones, I attempted to clean the AUX jack using a pipe cleaner, and it did nothing.

I have messed around with Audio MIDI setup, attempted uninstalling my extra audio output sources (Boom, Soundflower), checked the balance in System Preferences/Audio, reset the SMCs and my PRAM.

Any help? 😟

Model: Early 2011 13" Macbook Pro

Specs:

i5 2415m 2.3Ghz@ 2 Cores (or maybe 2410m?)

Intel HD 3000

4GB RAM

320GB Hitachi HDD