Having a hard time with water

A

Up until about 3 weeks ago, I was drinking about 130oz a day. Then I started sleeping more and not really drinking much and now I’m down to about 16-24oz a day. I feel like the worst mom lately, but I just cannot stay awake during the day and when I am awake, I’m not thirsty. I’m not really eating much these days either 🤦🏾‍♀️