What do I do?

I'm so confused if I should be downing salt and water like I have..I just take the salt shaker and down salt. It says though high salt can cause ulcers and more likely to develop h pylori. My stomach has been hurting and very full!! After I fasted most of yesterday then are a big meal, I've been hurtin.. Does anyone have issues with their stomach and a POTS flare? I dont know if it just that or if its an ulcer. Is there a better safer way to get my salt in? I got mast cell and seem to have reaction to so many foods! I think I have to go carnivore diet at this point. So no food recommendations lol. Is there a pill or something better than LMNT?