Ladies idk if I’m having contractions or not can some one help me identify Them yesterday I went to…

Ladies idk if I’m having contractions or not can some one help me identify Them yesterday I went to the hospital because I had a headache for a day I took Tylenol It didn’t help I was hydrated and All I was nauseous the whole day before going to the hospital I try to take a bath in warm water see if I feel better When I got to the hospital they put me on the monitor my no level was elevated My pulse was High I didn’t even know I was having contractions because I didn’t feel them it just felt like a bad stomachache now today I have Cramps In my stomach and pain in my back as well I’m back and forth to the bathroom Pooping the baby is moving around so much and it’s making the pain worst I drunk water ate a meal so I’m sure it’s not that here’s the picture of the monitor from yesterday is this Braxton Hicks or Contractions?