Braxton hicks

Nichole

So with my first I didn't have them really until a couple weeks before I delivered. With this pregnancy I feel like I am having them all the time I'm 25 almost 26 weeks. How many is to many of there is a thing and when should I call the doctor. aI have been having them for the past hour almost 2 hours now they dont hurt just uncomfortable and I'm out of breath from them. Is this normal?