Hi, my name is Marie, I have been having these symptoms for quite a while and no one seems to know the answer. I will get the erge to have a bowel movement and then once in the bathroom the erge turns into severe abdomnal cramps, my heart starts to pound, I feel lightheaded, break out in a cold sweat and become very weak. When all starts to disapate I`ve had a large loose movement and I am so weak and lightheaded that I can hardly walk the 10 feet to my bed only to colapse and sleep for about an hour or so. For several days after my sbdomanal muscles are sore and I am very weak. I am 65.7 yrs. old. Thank You for any help or advise tyou can give.