I'm the same, I think it all boils down to change, it just varies over time I guess. I dont think a bp that small of jump should be causing bradycardia. But heres my take on it. The body may possibly have recovered some nerves so it works a bit better at vasoconstriction, so if there is vasoconstriction that still over compensates for what doesnt vasoconstrict, it would cause a reflex slower heart rate. Your exactly the same as me mate, my HR other week was lower even standing and my head felt so weird and horrible i could not bare it. The thing is, BP probably has no effect on the heart rate, since my bp can be 100/49 and be hr 50 and then 120/70 and be hr 50. Its so confusing! The florinef, should cause a low HR to actually increase a bit, due to a Bainbridge reflex, which is what im hoping lol, I also think because of florinef, vessels can vasodilate more rather than an over compensation leading to better blood flow in the brain and more oxygen less symptoms. Thats my theory anyways,