A long while ago I had a concussion where it took weeks for me to remember long-time co-workers and friends' names, let alone that big fat 'disconnect' you get a times!
The mind is a terrible thing to LOSE! Go talk to your folks and get professional analysis of what all is going on with you! You are very articulate about what all is 'not right' with you and I'll bet your folks would back you up to get it all checked out.
Sometimes it can be easy to ask for help? Other times it can seem hard until you ASK. It's doing what you have to - to better survive! It's affecting every part of your life [and, lots of us here have similar and different issues that AFFECT our lives] - IT IS STRESSFUL! But, if you get looked at properly a LOT of that stress can be laid to rest. Don't let this all win - get to work and know that many here have also had to find the heart and courage we know you have to get better. My heart is with you and keep us up to date on all that happens. 's - j