Baby Gargoyle Gecko not moving but still breathing

[IHaveADogToo]

I've had this gecko for 4 days. I got him at an expo. He's about 2 months old. His name is Mouse.

He has been active and moving and lively the past several days, but for some reason today he is not moving. He is breathing, but he's gone completely limp. He doesn't move his legs or anything when I pick him up. I thought he was dead, because he even stayed limp when I layed him on his back, but from that angle I could see he was still breathing.

My animal room (all my other animals are doing great) stays around 76 degrees F. I don't have an additional heat source on Mouse's enclosure because I was under the impression gargoyle geckos don't need one? Last night when I went to bed I turned off my AC though, and the house (animal room included) got into the high 80's. I don't know if that caused the problem? The past few days he's felt cold to the touch but he's been moving and active.

I have him in a 20 gallon high aquarium with a lid. Eco earth substrate with a layer of leaf litter on top, and a lot of fake vines and branches to climb on. Because he's just a baby, I have several food dishes in the tank, so he shouldn't have trouble finding food. Is the enclosure being too large the problem maybe, even though he has multiple food bowls? Humidity is pretty high, around 80%, which I think might be too high. Yesterday I skipped a misting, because I feel like the humidity is too high, and he felt cold to the touch, but that didn't help the humidity go down at all it seemed like.

I have never seen him eat and he ignores food when I hold it in front of him. The only time I ever see him eat anything is when I put it on his nose and he licks it off. I'm feeding him repashy crested gecko diet.

His toes seem weird, too... like... they look curled, shriveled. I don't know why. Maybe he fell and broke some bones in his foot? After sitting him down outside his enclosure and letting him sit for several minutes, I was finally able to induce some foot movement, and it seems like he's having trouble using his feet.

Can anyone help me figure out what's wrong? Is there a problem with my husbandry? Is there a problem with the enclosure? What's wrong with his toes, and is that related to him going limp? How do I help him get better?