I got sick after my fourth Covid vaccine, after having no reaction at all with the first three. I got a bad cold and a cough that lasted four months. No GI symptoms, though. My doctor gave me an antibiotic for the cough, and then I developed severe pain pretty much all over. I saw a functional medicine doctor who prescribed several supplements and also an anti-inflammatory diet. I got better slowly, but now I can't eat gluten, refined sugar, or dairy (except Greek yoghurt). I got Covid in December, even though I wear a mask everywhere, and thankfully, it was a mild case, like getting a cold. I was actually sicker after the last vaccine than I was with Covid. I took the CVS brand of Maalox last winter and was sick for over a month with terrible upper body pain. I now avoid ALL drugs, both OTC and prescription, and ALL vaccines (I also got bursitis from my last flu shot, so those are out, too). I didn't develop food sensitivities from having Covid; they developed after the fourth vaccine. I'm now getting IV infusions of Vitamin C, magnesium, B complex, and calcium, which I'm hoping will boost my immune system and help me avoid any further flare ups. These infusions are very expensive and not covered by insurance, and neither are any of the supplements I'm taking. Nothing from a functional medicine doctor is covered. BTW, my IV doc is totally against the vaccines.