I can honestly say that I have not been the same since my second Moderna vaccine. For a few weeks I had so much joint pain that I could hardly walk. Still not a 100%. Still have no energy. Tire easily. Insomnia. I could go on and on. All of these symptoms occurred within a day or two of the second dose. Knowing what I know now I probably wouldn't have gotten the vaccine. I take Vitamin D supplements and Zinc. I probably would have been ok to just take the supplements and limit my exposure to the general public.