I used this product yesterday, 1 drop in each eye, and immediately had burning in both eyes. Once the burning subsided I started tasting it going down my throat and started gagging - what a horrible taste! A couple of hours later I started vomiting and had severe stomach cramps but it all went away after that one episode. Is there any possibility it was from the meds? If it were anything else (food poisoning, virus, etc) it wouldn't have gone away that quickly. This is the only thing I could think of that may have caused it?