During the night Sydney needed to go out. About 15 min later he started panting and breathing heavily. I gave him a furosemide and that helped. He slept awile, had some water then threw it up. I took him outside, and he went potty again, then fell asleep again. Two hours later, drank more water, went outside potty and threw up again. He slept for a bit and now that he's awake he had more water, his breathing seems much better and he acting more alert. I also gave him his morning meds so I'm hoping he can hold those down.
His cardiologist isn't in until Fri, so I made an appointment for then. In the meantime, I'm waiting for another doctor to call back for further advice.