Super uncomfortable suddenly

I’m 24.5 weeks with my third baby and have been getting along fairly well. Last night I slept horribly. Tossed and turned all night. This was different from just not getting comfortable because of growth, it was almost like no matter how i laid I was squishing something or couldn’t breathe well. All day today I have felt the same, super uncomfortable, almost light headed, and my nausea came back for the day. I’ve never experienced this in any of my pregnancies. If I can’t sleep tonight due to this feeling and it continues through the day, I will be calling my dr. Anyone else have any similar experience? Just typical pregnancy pains? I’m perplexed and struggling.