Can this be GERD?

Right as I’m falling asleep I get hit with this intense chest & throat tightness that wakes me up gasping for air and feeling like I’m suffocating. I also feel it while I’m awake, just not as bad. I also get a lot of regurgitating after even drinking water.

This has been going on for a week already and haven’t been able to sleep more than 3 hours every day. Been to the er multiple times and gotten multiple X-rays, EKGs, stomach US etc for this and they can’t find anything wrong with me.

Help.