Try a different tea? Lapsang Soochong or Pu-er for stronger flavor? Herbal teas are good if caffeine is what is disagreeing with you: red bush tea (rooibos), chamomile. Matcha is also good if caffeine is OK for you. If you like bitterness it probably sounds kind of weird but you can steep some lingzhi mushroom dried slices in water and after steeping a while it's pretty bitter. There's probably other mushrooms you can find too.
Or just go simple and sip water, maybe you'll find infinite "wateriness" is like no wateriness at all! Ha ha ha! :) You can add like tobasco to it, or bitters, or bitter gourd if you want bitter.
Or just go simple and sip water, maybe you'll find infinite "wateriness" is like no wateriness at all! Ha ha ha! :) You can add like tobasco to it, or bitters, or bitter gourd if you want bitter.