★★★★★
B1 (thiamine) deficiency is a common cause of dysautonomia. Unfortunately, for some people injections or cream will be needed as their genetic makeup doesn't allow them to assimilate it. Putting some powder under the tongue and allowing it to melt bypasses digestion as well.
I had bad heartbeats after getting up and some shakiness, especially bad at night, if I had to go to the bathroom. It took a week or so to become better when putting some B1 powder under the tongue 3-4 times a day. But I also took cayenne 2 capsules 2-3 times daily, which I felt helped a lot too.
I also take B complex, B2 (for migraines) and B12.
Mine was triggered by 18 day juice fast, and severe stress.I think that made bad B1 status even worse. I haven't tried Butcher's broom herb, but that is supposed to be good as well.