life recently

I feel stuck, i am currently doing ok at life, im ok at uni, i have a loving gf, really good relationship with my family and friends. Despite this, i now feel absolutelty nothing about it, i have no drive to talk to people, going to university and having to talk to people feels so exhausting, its not like anyone is forcing me to talk and laugh the way that i do, but i dont want to crumble in front of other people.

I dont mean that i burst into tears as soon as i get home, quite the opposite, i struggle to get my feelings out, most of the time i dont really know what im feeling. I am lost, i dont know if im happy, sad, neutral, idk. The endless void of thoughts is confusing to read, i now spend most of my time in autopilot mode, i find myself answering things as i am not me, or even straight up lying about what i actually wanted to say, even if it doesnt matter, its like i cant help but to say the "correct" thing. 

Things that i am supossed to enjoy or to look for dont really feel like much, not because theyve lost their meaning cause i understand that i actually enjoy them, but everytime i engage in these activities i end up having this soul crushing feeling of emptyness and it just takes me out of the moment. Normally to power through this situation i just have to rely on the momentum of the initial feeling and praying that i am able to block the anxiety linked to the feeling of people noticing. Because of this i tend to have thoughts of isolation, where i just dissapear not because i dont love the people in my life but because i want to rest and have time to think and undertand what actually happens inside my brain, i shouldnt have this feelings about life, life has been really good to me, i want to be able to really feel like i feel things.