iMac says Your disk is almost full but it's not?

Okay I got a new computer, migrated my old stuff over. Had about 222GB left on that computer on a 1 TB drive, transferring to a 1 TB drive. iCloud Drive started up without me knowing it and I think it has everything screwed up. I've completely turned it off, done updates, restarted multiple times but I keep getting notifications--Your disk is almost full and notices about the Mail may not work because there is not enough space and same with iTunes may not work right. The finder and the Storage in About My Mac shows 214.56 GB space available. I am at a loss of what to do. I am on a 21.5 inch 2017 iMac, running 10.13.2, 8 GB Memory. Any help would be appreciated.