Panting Dog

My dog is 7 years old and she is a Bichon Maltese. Since last night, she has been panting constantly and she runs into hidden small places that she has never gone to before. What do you think is causing this strange behavior?

[Misfits4Me]

Any other symptoms? Constant panting is a sigh of PAIN!  Hiding would go with this, also......You need to try to figure out where it might be coming from and get her evaluated by your Vet.  

[jakesbride110]

You really need to take her to the vet, so many things pop into my mind as a possibility. It could be something as little as stress that is making her pant constantly and hide. Dogs can get stressed over so many things from being left alone to long or  Or it could be something more seriouse like seizures. Or it could very likely be pain just as misfits suggested. I hope you figure it out! Keep us up to date on how she's doing!!