Many Covid19 vaccine patients are concerned with ME/CFS (Myalgic Encephalomyelitis and Chronic Fatigue Syndrome) symptoms. Here are organizations providing help for these chronic conditions:
American Myalgic Encephalomyelitis and Chronic Fatigue Syndrome Society
https://ammes.org/organizations/
Solve M.E.
https://solvecfs.org/
Open Medicine Foundation
https://www.omf.ngo/