Yeap! Very normal to be very thirsty. I needed 3 litres a day and doctor said its a little too much. Try to maintain around 2litres ++ . I had super dry lips even after drinking lots of water. So I would apply moisturizer / olive oil on the lips too.
Yes, you'll need to drink more water than usual during the day, and I will still feel thirsty at night especially if I wake up to pee. I keep a glass of water by the bedside now.
im thirsty throughout the day and night. keep yourself well hydrated. i keep a water bottle next to my bed :)
Yes normal.