I get a big dip in blood pressure about 1/2 hour to 45 min after a ride. I get sleepy and sometimes take a 10 or 15 min nap - like right where I happen to be setting. The docs have me on 3 different BP meds - I stopped taking the most expensive one and have been monitoring my BP closely to see if it causes problems or not. I'm getting a lot more exercise than I was 8 or 10 months ago so my BP just keeps going lower - I'd like to be off all meds by the end of the year. I have appointments this month and November with the doc to make sure everything is cool though. Last winter I had BP of 210 over 135 a couple of times - don't want to go back there!