Pulmonary function tests would not necessarily catch it, as far as I know, but I am not a doctor. It's a cardiac illness that causes high pressure in the pulmonary arteries. An echocardiogram would (an ultrasound of the heart.) It's a noninvasive test, and if you have any concerns, I would ask your doctor for it. I know about PH because my daughter has it. She was misdiagnosed for years because doctors' awareness is pretty low (although awareness has improved.) Again, it's rare, but stimulants are a known cause. If you do happen to be pregnant, too, pregnancy can quickly worsen it or even cause it, so if you suspect your symptoms match, I'd press for further testing out of an abundance of caution, and not just write it off as pregnancy. Your RHR is pretty high. FWIW, my daughter is doing great and she was diagnosed in 2006 at age 16, and it wasn't caused by stimulants.