Hi Estrogen,
Have you changed your diet. There are many foods that will thicken your output to the point of not producing as often. Have you started a new medication?
How long have you had your ostomy? I know the first year of mine, my output habits were forever changing. When that happened before Instarted irrigating , a few days of no output was normal. Sometimes, I think my colon just says enough, goes on strike to show me who is the real boss.
But seriously, Do you have any pain in your stomach? Is there any gas passing? Keep a close eye on all of this. There are some foods that will cause a blockage especially if not chewed really well.
If this continues and the signs point to, and you are concerned about a blockage, you may want to drink one of the old favorites for helping that along. Prune juice, you know that routine. The same things you would do for constipation pre Ostomy. If it does continue, an over the counter stool softener may help. If you begin to have pain such as cramps, and it does not pass, a trip to the ER, since it is the weekend, may be In order. Give it a chance to correct itself.
This is something most of us have on occasion. Some are worse than others.
As you can see, there are many reasons for not having output. I would not worry too much about 24 hours. I irrigate and have no output for two days between irrigation's.
Good luck. I hope you feel better soon.
Puppyluv