I'm having the same experience. I have been working on my thesis for the last year. My university is in a different city, and everyone working on something rela

I'm having the same experience. I have been working on my thesis for the last year. My university is in a different city, and everyone working on something related is in another country. This made it hard for me to make progress and this has had the effect of me isolating myself even more (I haven't made enough progress to have a beer with friends and not feel bad about myself). Although I have never been sick for the last year, I recognize all the other symptoms to some degree. For an assessment, I took an IQ test a while ago. I used to be really good at number sequences, acing them or at least getting 95% right. I think I got about half of them this time, which was quite shocking. Once I finish this thesis (my supervisor keeps trying to convince me to postpone my graduation - a student working on a very similar problem has spent more than 2.5 years now, and has not graduated yet) I want to spend more time on my social life again.