OK so I just had a diagnosis of EIH too. Super strange.
- 47 years old, 195lbs, 6ft 1.
- Very fit, a lot of cardio, regularly win indoor rowing competitions
- No regular medications
- Resting BP 120/80
- Moderately high cholesterol numbers (HDL 36, LDL 237)
- Never felt anything amiss until last week when I did a normal high intensity interval training workout (heart rate was peaking at 170bpm). After the work out my left arm went numb and my chest felt very odd. Had an EKG at ER but nothing amiss.
- Since then feeling discomfort when my heart rate goes above 100bpm.
- A heart echo stress test last week showed my systolic blood pressure went through the roof during exercise: 256 at a heart rate of 162bpm. Everything else checked out fine. (Shouldn't really go above 220 I understand).

Only other thing to note is that I had a covid booster and flu shot the week before the ER trip. Not certain if this is connected.

My questions are:
- What is the discomfort I am currently feeling as my heart rate goes up? Am I feeling the high blood pressure, or did I cause some heart irritation after the numb-arm event?
- Could this be something that has come on suddenly? Maybe even a result of some inflammation following the vaccines?
- Or have I been living with this a while but never noticed?
- Is this going to go away?

My cardiologist is going to prescribe some blood pressure meds she tells me.