Shortness of breath

Kayla
Hi ladies,
This is my second pregnancy and I'm almost 24 weeks along. Just this afternoon I've had really bad shortness of breath, like someone is sitting on my chest. I'm not doing anything either, no activity that would cause me to feel this way. I don't remember this with my first pregnancy. Anyone else have this going on? 😔😓 Any tips on what I can do? Should I go to ER???? I just don't want it to be nothing and make a big deal.