I almost choked and stopped breathing. I don't know what is going on but I have a really hard time…

Don't lay on your back & lay on your left side

I sit up on my back with pillows behind me and yes the left side is the side I have a hard time breathing on @bree52

Baby pressing against everything causing you to feel short of breath

Yea that's what I'm thinking.. even when I was in L&D he was pushing up against my right side and I was having trouble breathing. I had to push on my belly to get him to move @junesmommy15

yep, I use to hate that feeling

don't lay on your back and if you do elevate your head. and try laying on your left side instead if your right

I do elevate myself and laying on my left side is hard to breathe @osnaprose

I had those issues as well when I had my son but those things helped.maybe ask you Dr for other options