Throwing up

I also started a new medication like three weeks back and it didn’t occur to me till today that it’s what’s been making me sick. Especially at night, I have the overwhelming desire to throw up, like saliva building in your throat and pain right at your chest. I usually just take deep breaths and try to pass through it but now I keep waking up in the middle of the night literally gagging throwing up. It sucks because obviously while you sleep you can’t do anything to help it so I feel like I’m just going to keep throwing up in my sleep? I’m on four medications and the first three didn’t give me that side effect so I didn’t even think about it even though it’s what made me go off medication in highschool. Sitting here right now is making me want to vomit writing this lol.