Has anyone gone to the hospital for having a hard time breathing?

I've been having a really hard time breathing for over a week when I'm sitting up or lay on my back. (Ik when you lay on your back it's normal to have a hard time breathing) Well since the middle of the night it has been really hard to breathe no matter how I lay and even is hard to breathe when I walk. This is my 3rd pregnancy and idk if I should go to the hospital or just ignore the pain. I'm 32 weeks 2 days.