ahaha, i don't know what to do

so, i isolated myself from a group of friends. they're really good people, and i don't exactly dislike them, but i feel like shit and start having second thoughts whenever i spend time with them. i feel like i'm ignored but i know that's not true because what i say in the groupchat doesn't make sense to them or they just don't know what to say; and i feel really crappy whenever that happens. i don't feel a connection anymore and i just kinda drifted away. what do i do? i really don't know anymore and it's making me confused and bedridden. i feel like i'm just being overdramatic but then again it's been going on for a while. i haven't talked to them in a few months now.