Oh Anna I know how worried you must be seeing him not behaving like his normal self. I think a visit to the vet is the only way you are going to put your fears to rest. Maybe it is nothing more than Angus being bothered by the heat or maybe even could this be a side effect from his medicine? I guess the only one who can answer that will be your vet. Please do let us know what happens. I will say a little prayer for your big boy. Feel better soon Angus. You have many friends here who are worrying right along with your mom. (((hugs)))