I am 25yrs old, have had stomach cramps, bloating and severe pain around my belly button. I have been told that I might have ibs, but I am undiagnosed. I am using bevispas tablets, but I used to have regular stools, daily and now I am constipated. Should I

You need your doctor. Clearly something is wrong and needs medical attention. Please avoid taking medication for your bowel without your doctor's recommendation. You may be making things worse. Please see your doctor right away. You don't have a diagnosis and you need to find out what is wrong before taking medication without medical recommendations.