As for BP, there are some very simple ways to check (yourself) to see if you have any autonomic type dysfunction. The effect on BP is not just a high or low BP, it is the ability of the BP to adjust accordingly for postural changes. So, symptoms would be dizzy/lightheaded when you stand up from a seated position, or after standing still for a few minutes. The best way to check, is to use a BP machine and take your BP while laying down, then sit up (3-5 minutes later) and take it again, then stand and take it again. If the systolic (first number) drops more than 20 points and you get any symptoms, then you probably have some sort of autonomic involvement. You can check this at any time...like if you start to have your symptoms, then immediate go start this process of BP checks to see if your symptoms might be related to BP. Doctors actually use this same technique in the office to determine if you are having any orthostatic hypotension. Your home BP machine will also give an accurate heart rate and can be used to check this whenever you are having symptoms.

The autonomic process on the heart rate does not simply change the rhythm. It too effects the rate during postural changes. POTS (postural orthostatic tachycardia syndrome) is just as the name describes, a high heart rate upon standing or changing your position. This also happens when the BP drops upon standing (as the heart tries to compensate for low BP by trying to beat faster to increase blood flow).

There is also an element of bradycardia (low heart rate) with autonomic dysfunction. You mentioned having a low heart rate at times...how low? Where they able to document this low rate on an EKG? Did they tell you what the arrhythmia was (name)?

I really wonder if your face symptoms might be due to some SVID (small vessel ischemic disease). I have this as well and have had many times of unusual numbness/tingling in the face to include nose and around eye. This is why I asked on another thread (I think I did) whether you had an MRI of the brain yet? You may have answered, but I don't remember. A CT scan won't pick up those small vessels...has to be an MRI.

I have horrible TMJ but no real pain (except rare times). People in the next room can hear my jaw pop when I eat...LOL It's really that bad. But NO dentist or doctor has ever said my face tingling was from TMJ.