Okay I have had a Leopard gecko for about 8-9 months, and this is my first one. Ever since winter has started, he hasn't been shedding good or eating hardly at all. And his tail is really skinny. Then I found out that he has Metabolic bone disease, because of calcium deficiency. He can't walk well, and won't eat. I purchased the jump start food replacement stuff but he won't even lick it off his mouth, and when I try to put calcium drops in his mouth, he freaks out, and just starting today, he keeps "yawning" and he keeps rolling on his Back like a barrel roll and there is a dark spot on his stomach but it can't be impaction because he lives on paper towels. I'm very upset and don't know what to do anymore. Any ideas?