pain in abdomin(abdomen) on left side of belly button

I am having a pain on the right side of belly button. It feels that it is somewhere in intestine. I can feel the site of pain by touching. At times when bowel gases are blocked I can feel a little bulge in intestine.I am having loose stools for three years.In the morning it feels as if the material is moving in intestines and causes pain.A little relief is found when I lie towards right or lie down using a pillow to keep my chest a little above the stomach.Due to this perceived obstruction I am having constipation.The urge remains upto 3pm and then subsides .At times bowel gases block into intestine and severe pain occurs in stomach as well as headache in the front left part of head.If you can tell the probable cause of the problem please help.

[Hedro]

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