Parasites. Just saying the word makes you itch, right? Fleas, ticks, worms, mosquitoes… somehow, pets always find a way to pick them up, no matter how clean your house is. And the weird thing is, they often don’t show any obvious signs at first. Your cat might look perfectly fine, curled up on the couch, while a tiny invader is busy doing its thing. Dogs and Cats? Same story. They’re basically masters at hiding discomfort.…