How do you know if im allergic to water?

Answer 1

Well, I can't tell If you're allergic to water as I'm not you. However, I doubt you are allergic to water itself as you're composed of 70% water. You may, however, be allergic to something contained in the water. Water is loaded with minerals and chemicals such as Fluoride, Chlorine, Sodium, Iron, Copper, and many other things as this occurs during water treatment.

My recommendation may be to try Bottled water or purchase a water purification system to eliminate anything harsh in the water.