2 month old waking crying and screaming


So the last two nights out of nowhere my 2 month old daughter has woken up screaming/crying bloody murder. The first night it took us half an hour to console her. This time it was about 15 minutes or so. Each time she cries so hard she can barely breathe. Has anyone ever experienced this? I know babies cry but this was a whole other level. I've seen her cry because of gas and hunger and even when it's awful she hasn't cried like this. She just had her first round of vaccines two days ago, not sure if that's at all relevant but the timing lines up with right when it started. Just wondering if anyone has any insight on this. Should I be worried or do you think this is just a normal phase? Maybe reflux? She does show many symptoms of reflux but this is new.