hi doctor, actually i am showing some Gi symptoms and some physical changes in myself for the past one year.my weight is fluctuating , though i am regular walker and trying to eat healthy good..i have stomach bloating, water retention,nasal congestion, sleeplessness, breakouts and pigmentation on skin .all my blood tests are normal regarding hormones,urine tests ,sugar tests etc..i am suspecting some allergy or intolearnce of some foods..i need your suggestion or advice whether should i go for food intolerance testing?thanks.regards vari