16 is way too many. Usually 6 per day is the max. Furthermore, ibuprofen is often contraindicated for IBD, not to mention, excessive use can lead to kidney damage. It's okay to ask for something stronger if you're having that much pain, especially since you are only 2 weeks out. I was still in the hospital and on a morphine drip after 5 days. Call your doctor; you should be able to have the prescription refilled over the phone.