Braxton Hicks

So I just had 13 BH within 25 minutes and they were INTENSE! So intense they about took my breathe away and made me kinda light headed. Should I call my OB? Im not sure what's normal for BH and what's not. They weren't getting stronger as time went on. It seems like they've stopped these past 10 minutes but should I still call? I'm 31 weeks and 6 days

UPDATE: They told me that if they weren't getting stronger and more frequent then I should try to lay down, drink water, and/or use a heating pad or take a hot shower. She said if they continue to come every 2-5 minutes to come in