I know that hyperflexia can be a part of dyautonomia. My reflexes have always been hyper, and now more so on the left side, including tremulousness. I finally have a neurologist that listens to me. I had an MRI and MRA done. My dad had a cerebral aneurysm, so since I had stroke like symptoms after a virus 13 years ago with a binocular defect in my left eye, I have had many MRI's with contrast to check for these things. Initially, I thought I had MS, because of all the weird neurological symptoms, tingling, heaviness, tightness, shock nerve pain, warmth in different areas, but after the last MRI with no lesions, they ruled that out, but I find it interesting that my eye is still misaligned enough to affect my vision, I've had ear surgery because of a malfunctioning eustachian tube, vertigo and dizziness, and excessive tearing, droopy eye lids, etc., yet no particular reason for any of these things, except my new diagnosis of dysautonomia. I was also tested for Meniere's at the ENT and hearing loss, and there was nothing significant, so I am grateful for that. If I were you, I would find a doctor, who you can trust to share anything. I had to do a lot of searching before I finally found doctors who would listen to me, admit they don't know everything, and are interested in me, my illness, and are even willing to learn a few things, too...hang in there.