I drink 4 to 5 liters of water daily, including 1 liter extra when going to the gym. But when I drink more, I urinate a lot. I have a problem of frequent urination, and by night while sleeping, I am already dehydrated again. I do not know why this is happening. My urine test was normal, LFT is normal, and CBC is normal. I urinate quite a lot and drink water accordingly. My sugar is normal, including HbA1c. This has been happening since I had stomach issues and digestion problems, probably IBS or something else. I also have a gallbladder polyp as found in USG. Please help me. How can I treat this dehydration problem completely?