Anyone having trouble breathing

I don’t know if it’s the extra weight but when I sleep my lungs feel tight. I sleep on my side and I occasionally hear a cracklings sound or moaning sound triggered by my right lungs. I’ve never had breathing issues, so I’ll be bringing it up with my doctor. Baby seems low enough where this shouldn’t be an issue.

I also have acid reflux but even after I take a tablet I still have issues.

Thanks I’ll bring up the issue with iron. I had my iron checked before and it was normal but since then I had an aversion to meat. If not it’s probably weight, I feel so heavy and gross lately.