symptoms include abdominal cramping or pain, bloating and gassiness, and altered bowel habits(alternate constipation and loose stools).
Treatment includes addition of more fiber in your diet,cessation of smoking
and taking stress,antispasmodic medicines,antidiarrheal medicines,antidepressants and new medicines like Alosetron (Lotronex) and Tegaserod (Zelnorm).
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.