When I drink too much water I become dehydrated and constipated

Anybody else ever got this issue, if I drink when I am very thirsty I have no issues however when I try to over drink water, my body starts to absorb all the water and pass it out until my stool are rock hard and my lips are dry and it won't absorb anymore water until next day.

Could be because of a lack of sodium?

Stool softners like Movicol have electroyltes in them to prevent dehydration x

wow thank you very much Amy I will go and purchase the Today.