Still my kitten

Boris (4) hasn't been very well lately...he is normally the man about town...only drops in to eat & yells to tell me he has to get back out again quick, as, he says, he has places to go & stuff to do! However, for the last couple of weeks he has lost quite a bit of weight & isn't interested in anything much...he stays in & sleeps a lot. He also seems quite intolerant to daylight. His pupils are tiny slits all day as though letting light in is an issue for him. So, we have everything crossed that after a trip to vet for a blood test tomorrow, the vet will give us some answers that means I can get my hero back to his old self!