German researchers found biomarkers tied to post vaccine issues with pots and dysautonomia

Increased angiotensin II type 1 receptor antibodies

Decreased alpha 2B adrenergic receptor antibodies

Increased IL-6

Increased IL-8 (not evaluated in the control group)

https://www.react19.org/science-and-research/lit-reviews-and-surveys/vaccines-cfs-dysautonomia