The strangest phenomenon...

Something strange happens everytime my Chameleon is about to get sick and during the time that he is sick. We have asked all of the doctors about this strange occurance and they are all baffled by it. He had surgery on his left foot and ankle just after he turned three years old. Eversince he was very young we have always known when he was about to get sick. How? Well, his left foot has intense pain and gets very hot. Almost like he has a fever and severe cramping in his foot, before his body shows any sign of fever or sickness.

That is what we are dealing with today. He has been having very intense random, bouts of pain in his foot. He has been on the couch all day saying that he can't eat, he feels weak, and he has thrown up a couple of times. But the worst part is the pain in his foot. He screams an earshattering, peircing scream that I'm sure the entire neighborhood can hear. I have tried rubbing his foot, wrapping it in a cold wet cloth, and just about anything else I can do.

I want to help him, but HOW?