Looking for relief!

I'm 17 weeks with my 3rd child. This entire pregnancy so far has been a nightmare aside from my little growing angel. I would have to say last night was the worst thus far, I literally thought I was dying. I woke up from sleep around midnight unable to breath and barely move, I managed to make it to my husband downstairs for help. Poor thing he was terrified more than me. For some reason I had pockets of air trapped in what seemed to be everywhere in my body, so my husband is rubbing my back and saying I'm calling 911 over and over eventually the majority of the air passed, then I started vomiting everything that was in my stomach which was mostly grape juice and I was able to breath easier. That was the scariest thing last night for the both of us all I kept thinking and saying is God help me. My little baby seems to be fine, I felt movement and actual kicks, which surprised the hubby and I, he was able to feel it also. We didn't feel kicking with our other 2 until around 20+ weeks.