I don’t know what to do?

I’m 27 weeks tomorrow; last night I had really bad back pains cried myself to sleep, this afternoon I got up and had a shower started getting ready and then I felt really hot and dizzy, sat down had to go to the shop to get food, as I was in the shop I had the same feeling, really dizzy and hot so I quickly paid left and walked home ( 2 mins from the shop is my house )

I sat down and then projectile vomited.

I used to feel and see my baby boy loads in my stomach and now I feel slight movements but he kicks in my vagina ( what it feels like ) but only slightly 😕 what do I do? I don’t know if I’m just being paranoid 😣