Hello and welcome to HCM. Thank you for your query. I have gone through your query, and the first and most important thing you should know, is to never control your bladder, there can be many ill-effects to this. Now coming to what could most probably be the cause to your discomfort. The bladder is made of smooth muscle, which is specialized to stretch, which helps in holding much more urine and accommodate more when necessary. This stretching of the bladder sends out a signal to the brain which then informs you that it needs to be emptied. Stagnant urine can accumulate a lot of bladder, and whether in the bladder or elsewhere in the body, this stagnant urine (bacteria) can result in infections in the urinary tract. Although these occur rarely, and most individuals do not hold the urine long enough (as they cannot actively do so), the bacteria does not get enough time to cause an infection, but this does happen. The sharp pain you were experiencing you purely be due to the bladder being stretched and pressurized for so long, and all so suddenly relaxed. Which is what explains the pain, which lasted for quite sometime. But, it would still be wise to wait and watch for any signs of an infection; if you do experience them, then visiting a doctor would be necessary. Let me list a few of the most common symptoms down for your reference. They are: -Burning sensation while urinating -Frequent urination -Increased urge to urinate, but less amount of urine passed -Chills -Fever -Lower abdominal and/or flank region pain -Itching around the genitals -Blood in urine or immediately after (not always seen) In the meantime, it would be best of you would consume as much water as possible, and visit the toilet whenever you need to, without delay. And I am sure you will be fine in no time. I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications. I would gladly help you. Best wishes.