Update: i figured out that it was a mature male that just died of old age. Thank you so much to everyone that helped me.
I have a Pink toe tarantula and im not sure how old she/he is but i wouldnt guess more than like 3 years? Anyway, she lost a couple of legs recently (like a month or so ago) but she was fine afterwards. But starting a couple days ago she started sitting in her water dish (theres a sponge in her dish and she was sitting on the sponge) which is odd bc she never comes down from the walls of her enclosure. And i thought she was dehydrated so i put some more water in her tank, sprayed it in there to make it more moist. Then she got out of the water bowl today and she laid down in the middle of her tank and i was concerned bc it looked like the death curl and she was kinda moving but very little and even when i touched her she didnt move which is unusual. But her toes her touching the ground, her legs werent completely underneathe her like i read they would be in a death curl. So i moved her into an icu. I put some damp paper towels in the bottom of a small container and put it in some place warm and put her in it. I came back a few hours later and she looks worse!!!! Now shes actually in a deal curl with her legs curled up under her and im so concerned someone help please!!!
Update: i put mesh on top of her icu thing so its more ventilated