I appreciate this information because I am basically doing the same thing, tracking all of my weight gains and losses and BP measurements to show the Dr. my BP's overtime. I am also showing the average between my BP in the morning and at night after daily activity. I am still falling in the low BP range. I also just discovered the breathing technique that I will be testing this weekend. The test that I saw on the internet by a Dr. was DRAMATIC and convinced me to try it. I am 75 and my goal is to reach my target weight of whatever the medical community determines that to be. I will submit that to the community later. Thank you so much for verifying what I thought should be done to confront/review with my Dr., "MY" regulated BP testing overtime and hope that he is reasonable and accept the results because his BP test will be wrong. God bless and thanks again for your great information.