Oh my gosh! That is a long time to go without eating! I would think they'd be weak by now. Glad you tried all those bugs. Have you tried dangling them, too? I offered mine earthworms from Walmart but the worms were too long. I cut them into pieces but they did not wiggle long enough and ended up wasted. So, today I bought small crickets and they're in the tank. I had to open at least 5 containers of wax worms to find one good one. Mine have belly fat, too. I considered dangling a strand of cooked plain spagetti but don't know if its a good idea. I considered this when they refused the earthworms.

I'd still keep trying with yours. They are otherwise moving around ok? Has anything changed in their environment, like different substrate or plants or temp? Are they in a quiet part of your house? Was anything removed or added? I hope you find a vet on Monday. They need to eat. Write back with any updates if you can.