Thanks for the additional information,
i would mention hemorrhoids as a cause for your cramps as they are one of the commonest causes for this sort of phenomenon. However since you say that this problem predates the hemorrghoids then i would consider other possiblities as well. one of these possiblities is Proctalgia Fugax.Proctalgia fugax is defined as sudden, severe pain in the anorectal region lasting several seconds or minutes, and then disappearing completely. The etiology is not well defined.
Attacks are infrequent, occurring less than five times per year in about one-half of patients Patients are asymptomatic between episodes . The discomfort can occur during the day or night, although it is not typically associated with bowel movements.
There is no known cause for proctalgia fugax, but it is thought to be related to a muscle spasm of the rectum. There is also no known cure.
There are remedies which range from warm baths (if the pain lasts long enough to draw a bath), relaxation techniques, and gentle massage of the anus. It has been suggested that salbutamol may shorten the duration of attacks, although its effectiveness in this capacity remains unproven.
Sedatives and antispasmodic drugs have been used to obtain pain relief.
After the onset of an episode, the most comforting measure to combat the pain is often to attempt defaecation for as long as the pain lasts, even if defaecation will not occur.
This is most likely possiblity if we discount the possiblity of hemorrhoids. I hope this answers your question
If I have been helpful,
Please click the ACCEPT (Green) Button so I get credit for my time,
POSITIVE FEEDBACK and BONUSES are always appreciated
Please feel free to ask me follow up questions, also note that this is NOT a substitute for a visit to the doctor.