Do you ever feel like a glass or bottle of water has followed you around all day without ever actually being consumed? You know you should be drinking more water but for some reason actually drinking it never happens? This is really common, and eventually your body stops giving you strong thirst signals (unless you’re already quite dehydrated). The more you drink, the more water your body will ask for.
This applies to everyone (I personally can get very lazy in the water department), but if you’re going through cancer treatment, with all of its side effects, it can be extra challenging to stay hydrated.