Health Anxiety

Hi~

New to board. I’m 38 years old (female). I gave birth to my second child this past October and then the anxiety came. I am sure I’m having a heart attack. I have been to the ER three times since October. I’ve worn a heart monitor, had many EKGs, Echo, Stress Test and a blood work up. Of course everything comes back fine. I’m going on Friday for a CT Scan of my heart. I have chest pains 24/7. The only time I feel fine is when I’m sleeping. I am just starting therapy now. I took time off when my son was born. Does anyone have heart attack anxiety? How do you deal w/ it? I can’t go on meds b/c I’m nursing and I’m not a fan of meds. Any feedback would be helpful. Thanks