So uncomfortable & not sleeping

I just need to vent. I am not sleeping anymore 2-3 hrs at a time tops then I feel like I need to get up and walk around a bit.i cant breathe. Even my maternity pants dont fit anymore. I just want to cry and I still have 3 more weeks of work until my leave. I'm in the worst mood today. I just want to go home and cry. Lol sorry end rant