Mild pain under left ribcage that comes n goes since 1.5 mnths smtimes on sides navel.splenomagely?no other symptom or changes.non-smoker nor drunker.

Have it checked: Splenomegaly as a finding isn't common unless you've been exposed to certain things that would cause it to be felt. Is this somethig your doctor has already discussed with you? If so, yonu need for him/ her to do an abdominal exam on you while lying down, and you'll have your answer. If it's continuous, and not related to your spleen, check your diet as bloating can be occur.