Many of you guys know my dog Sancho has environmental allergies. The problems usually don't kick in until April or May. I recently took Sancho to the groomers b/c his coat was getting too thick and he seemed uncomfortable. When he came home he was fine but these past few days he has been itching like crazy and his ears are full of wax. These are usually symptoms of his allergies, the only difference is he is shaking. It only happens when he inhales while he is sleeping, or when he is outside. When he is sleeping it's primarily the right leg, eyes, and ears that twitch. He is eating a little less than normal but his eating habits have always been a bit weird. He is a lot more lethargic. I'm not sure if his lack of coat is causing the shaking or it's something else. Can it just me a muscle spasm?