please help!

Liliana • Blessed with the best. March 26th😌🌈
Hello ladies, I'm 36 weeks today and I don't know what quite is wrong with me, any help is appreciated. Here's what happened. I was having BH contractions one after another so I sat down, and was still having them pretty badly. All of a sudden I got extremely dizzy, my vision was spotty and I couldn't move or function, I was extremely shaky, and then I threw up. After throwing up I was still dizzy, and now super shaky. BH contractions are still there but not as often or painful. What could this be?? 
Also, I have a doctors appointment at 2:45 so I am not just counting on the <a href="https://play.google.com/store/apps/details?id=com.glow.android.nurture">nurture</a> ladies opinions, I just would like to get an idea before going. Thank you ladies!