I have a b smithi that I got as a spiderling in April of 2012. I don't handle him at all and he is normally quite active and busy. I sexed him a couple years ago and he is a male. The past two weeks he has become lethargic, and sits in the corner of his enclosure and doesn't move. Today I noticed his abdomen looks like it is deflating. He always has a water dish available but on the off chance he was dehydrated I put him in a warm damp ICU container. He does not seem to be improving in health. If I try and move him he almost tips over and seems very weak with his legs curled underneath him. Is he dying of old age? I feel terrible that he might be suffering. I don't believe he has any parasites and there are no signs that he has injured himself. Is there any more I can do for him except keeping him in the ICU box? Can you take a tarantula to the vet? I am so sad that he isn't recovering. I really love him and hope there is something else I can do to help him. Any help at all would be very appreciated.