I rescued a ground snake a few months ago and up until recently he was shedding and felt strong when held. Yesterday he was a little irritable like he was about to shed again so I left him alone. Today when I went to check on him, he seemed different, no sign of shedding and he felt limp when I picked him up. I've been putting 2 ants a week in his home with him but there has been some debate on if he is actually eating them or not. He's from outside and they are the only things that would really fit in his mouth, the small crickets from the pet store are too big. His head is the size of my pinky nail so it's tricky finding food small enough. Does he just need more food or what? I heard that of they are older, they only eat once a week but we have no idea how old he is. Please help!