Interesting. I've learned so much since I started wearing a HR monitor continually. Looks like it's time to do the same with BP - I've relied on a wrist monitor which is horribly inconsistent. You may be on to something. My heart rate was nice and slow right before my crash - which would normally correspond to increased BP for me. (I recenlty added proper electrolytes all day long; was doing only salt. Maybe that crashed me?) So......... what to do about it. The million dollar question.