About two months ago she started moaning a lot while she was just lying down. Sometimes it is loud enough to wake us up at
night. It really does sound like she is in pain, and she is not the type of dog to ever whine or cry, she is very tough. Prior to this, the only time she has ever cried from pain was when I accidentally closed the door on her tail. It's not a constant moan, but somewhat frequent throughout the night or in the evening when we are watching tv.