My dog literally pants all the time. She's not in pain. Honestly, I don't know if she's hot. I'm assuming that she is hot because she's panting. Is she ALWAYS hot?? She is only quiet when she's sleeping. Is this just a her thing? She's done it since she was a pup (she's 4 now). I keep the house at like 74, she's a long coated border collie.