anyone with similar symptoms?

Meranda • 1/5/13💜 7/12/17💜
I have these symptoms that come and go. Some days don't have them then other days have them all day.  Just wondering if anyone else has had them and if they were perfectly fine or something more. Oh and I'm 24 weeks pregnant. 
-shortness of breath along with rapid heartbeat
-dizziness
-headaches
(Usually these happen together if I'm working or just got out of the shower or anything it will happen)
-back hip groin pelvic pain constantly 
-often get extremely overwhelmed and feel closed in. 
-some Braxton hicks
-swelling
My blood pressure has been good every appointment but sometimes I wonder