Frequent urination post prostatectomy

Hi guys... lots of info here on peeing a lot at night post prostate removal... question is, why am I peeing all night and all morning, a lot, when I stop drinking water at 4:00 in the afternoon? (surgery 3 weeks ago/ drink one quart a day) I seem to pee out the days liquid by early evening, but it starts up at night, getting up about 5 times all night, then a big kidney dump all morning till about 9am. This seems to me to be more of a kidney dump issue than a prostate surgery issue... maybe there's a medication to calm down the dump?? I need more sleep

Thx, Vince
Yes, I do have the urgency at night and morning, but what's strange is the volume of pee. Again, I drink about a quart of water throughout the day, tapering off to zero by 4:00. By 10:30 bedtime, I'm all peed out. Then around midnight it starts up and by morning I'm dumping huge volumes of clear pee every hour. It just seems backwards.
This also just started. I'm at day 18 post surgery and was only peeing once a night till 3 nights ago. Racking my brain for a fix... Is it salt intake? Citrus? Too much Tylenol? I just need more rest and must chill out. If it's transitory, I'll survive... just hard in the moment

Thanks, Dave... I don't seem to have any swelling in legs, but you're on to something... my body is dumping fluids from somewhere... I'll look into this! Seems weird it just started 2 weeks after surgery, but whatever, like you say, I'm retaining fluid, I'll check with doc

Before my surgery in February 2021, I got up to go to the bathroom 1x a night maybe 1x time a week. Right after the catheter was removed I was getting up every 2 hours for weeks. I also had 23 lymph nodes removed and after about 2 weeks I noticed my left leg swelling and was diagnosed with lymphodema. I seem to have the lymphodema now under control and I'm getting up 1x a night 4-5 nights a week.

An active dream life makes for an active stream life...no matter how little or how much you drink...as there is much water in food...

My Urologist just prescribed Oxybutynin for me. It’s to control an overactive bladder. Some nights I get up 3 times and others once. He said I could take up to 3 a day with the only side effect a dry mouth. He also said I could just take one before bed as I don’t really care how often I pee during the day. Took first dose last night and only got up once. Hope it works. I don’t think I wake up because I have to pee, I think I wake up from a deep sleep and say heck I might as well get up to pee now. I was curious if a sleeping pill might help but we’ll try this first.