Braxton Hicks?

Victoria • PCOS, 1 Son 💙

I have this tightening in my belly (up near my ribs and lungs) baby moves when it happens and it’s just uncomfortable and hard to breathe. Is it Braxton Hicks or is it just him moving and killing my lungs. I’m kinda freaking out as I’m 34 almost 35 weeks pregnant and it’s been happening now for about a hour off and on. It’s probably just baby but I’m a first time mom and have NOT a clue what im doing. (I do have a appointment early tomorrow morning)