Since the RSD my BP and pulse are always very high especially during a flare or higher the pain higher the heart rate and am always tachy when Iam checked. I was put on meds to control it for a few years until it started to bring it to low. I was also diagnosed with Postural Orthostatic Tachycardia Syndrome and an RSD doctor I see said most all his RSD patients have been diagnosed with it and many with RSD have it just don't get diagnosed. If your BP and pulse stay high and doesn't seem to go down most Drs like to put patients on some sort of heart med as it really isn't healthy to have our hearts running that high. There are some times my BP was 210/116and the pulse was 177 and the drs freaked. Now a days my bp have been staying just slightly high its my pulse that stays high around 125 to 146. I would think rsd is a high cause in many of our high heart issues, not just from pain but from the RSD messing with our autonomic nerves.

Sam