My year old veiled chameleon suddenly got sick yesterday. He ate and drank fine all day till around 8pm. I found him laying on his side on a branch then eventually fell to the ground. Today he can barely move, laying on his side appearing to have seizures while streching his mouth wide open ever few seconds. This is so horrible. I'm being told by the time a chameleon is this bad there's probably nothing that can be done. Any suggestions?