Hi New Mom and welcome to NeuroTalk! As the others have said, I agree that you should see a doctor or go to the ER! Your symptoms could be caused by many things, so it will be to your advantage to get a diagnosis as quickly as possible.

Try to calm down, I know, easier said than done, but an anxiety attack will only make things worse. By the way, my first child, Lori, was born when I was 26 also. She's 40 now.....YIKES!!!! Take care and let us know how you make out!