Paranoid or no?

So I found out in January that I am pregnant. I’m a high risk and I’ve lost 3 pregnancies before having my son so this is my 5th pregnancy. Two nights ago I had a sharp pain and now I’m not feeling so pregnant anymore? I still have tender nipples but my breasts were tender as well a few nights ago. I was peeing a lot more then too. I’m so tired but now I feel wide awake. Do you think I’m just freaking myself out or being paranoid or could something really be wrong? I’m at the er but they won’t do an ultra sound. I’m so beyond nervous and anxious. I just feel like something is wrong.