Also you may consider getting a referral to see an allergist for testing.
Cheers
Hello,
Your symptoms are suggestive of irritable bowel syndrome. Irritable bowel syndrome (IBS) is a functional bowel disorder characterized by mild to severe abdominal pain, discomfort, bloating and alteration of bowel habits. In some cases, the symptoms are relieved by bowel movements.Diarrhea or constipation may predominate, or they may alternate (classified as IBS-D, IBS-C or IBS-A, respectively). IBS may begin after an infection (post-infectious, IBS-PI) or a stressful life event.
Majority of IBS patients have Generalized Anxiety Disorder. Another 20% have depression, and the rest have other disorders.
Irritable bowel syndrome can be a very difficult diagnosis to make. IBS is called a diagnosis of exclusion, which means that a doctor considers many other alternatives first, perhaps performing tests to rule out other problems.
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).
You can read more about this from the following website and discuss it with your doctor:
http://www.emedicinehealth.com/irritable_bowel_syndrome/article_em.htm
Hope it helps.Take care and pls do keep me posted on how you are doing.