What you are experiencing is normal. While you have the catheter, the bladder has zero pressure. Everything that drips out the kidneys goes out the catheter. The bladder shrinks and becomes lazy fairly quickly.
The bladder will naturally enlarge as you hold the urine in. I believe there is also a psychological element here as well. As a part of contolling incontinence we are super aware of bladder tension, and run to the bathroom every time we get the urge to go, so we don't wet our pants.
I am a lazy sleeper. I cannot stand to get up in the night. Used to wet the bed when I was younger just from laziness.
I have found that partly by being a sound sleeper, and the lazy aspect, that initially I got up 2 or 3 times a night. As I began to resist the urge, and essentially refuse to get up until it hurt so bad I had to, I was able to reduce the number of times.
Today, I don't get up unless there is some unusual amount of liquid drunk the hour or two before bed.
Age 58, PSA 4.47 Biopsy - 2/12 cores , Gleason 4 + 5 = 9
Da Vinci, Cleveland Clinic 4/14/09 Nerves spared, but carved up a little.
0/23 lymph nodes involved pT3a NO MX
Catheter and 2 stints in ureters for 2 weeks .
Neg Margins, bladder neck negative
Living the Good Life, cancer free 6 week PSA <.03
3 month PSA <.01 (different lab)
5 month PSA <.03 (undetectable)
6 Month PSA <.01
1 pad a day, no progress on ED. Trimix injection
No pads, 1/1/10, 9 month PSA < .01
1 year psa (364 days) .01
15 month PSA <.01