My cat is a year-old and seems to be having a lot of trouble coping up with the hot summer. I live in a place where temperature goes up to 45° and he's been breathing rapidly from the last one to two weeks. I've been giving him wet food regularly and he's been eating fine. He is peeing and pooping fine. But he's been drinking a lot less water than usual. And he's been very lethargic from the last couple of days. Should I start giving him electrolytes or any other medicine to make him feel better ?