Thanks so much for your replies, all! I tried to check my pulse upon standing today, but it was so hard to detect! I finally counted around 82, I think, so around 10 points higher than my supine pulse. I am seeing an integrative med doctor about all of my other issues so I will bring it up to him. I did see that there was a specialist near me also, so when I switch insurance plans I am going to try and get an appt with her. One last thing, One of my aunts has MVP, and another one has raynaud's as well, so I wonder if there is something weird with my genetic tendencies towards blood vessel regulation, etc. Thanks again, everyone