I cannot physically have a conversation or interaction with anyone without coming away from it overanalysing every single thing they have said and feeling anxious that I must have done something to annoy them and that they're probably going to go and complain about me afterwards. In fact, when I avoid interacting with people out of wanting to avoid feeling this way, I then worry that they'll think I'm lazy and avoiding doing work or something. 
This is turning out to be very rambly but I just cannot bear to continue feeling like this. I can't switch off.