Jinx, I think you should try grapefruit seed extract again, but this time start out slowly. Try two drops in 8 ounces of water twice a day. if you are okay with that for 2 days, then try 2 drops in 8 ounces of water 3 times a day. if you are okay with that for a week, then try 3 drops in 8 ounces of water 3 times a day. I am now taking 7 drops in 8 ounces of water 8-12 times a day. I built up to that gradually.