I have had 5 dogs that I raised from puppyhood since I became an adult. Every single one of them would come to me when something was wrong with them. My first would come to me acting worried about a minute before he had a seizure (he outgrew them). Another all but drug herself up the stairs when she was losing the feeling in her rear legs (no hint that anything was wrong before that moment....and I REALLY watch my dogs' health). So while it may be something else, she may be coming to the Pack Leader for comfort. Be sure she gets it in spades.