Alexandra

I'm 99% positive I have POTS. I live in an area with doctors who are unfamiliar with it and the closest city with real medical care is 6 hours away. I have symptoms of fainting, shaking, blurry to no vision, trouble standing, unable to concentrate, extreme exhaustion as well as overall weakness. Although I adjusted my lifestyle to keep symptoms done, I would still like a formal diagnosis. The problem is that my symptoms never show up when I go visit the specialist 6 hours away. So I'm hoping to find a very reliable smart watch to track my blood pressure, pulse, and maybe my oxygen intake. Does anyone know of a watch, or device really, that's up for the task? It really needs to be accurate. Thank you so much.