Had a cesarian 2 months ago, and have developed a burning sensation behind the scar. also occasionally i experience a sharp pain when standing up from a seated position ?

Possible Adhesion"s: When surgical scars heal, they can often bring intra-abdominal organs into the mix by attaching them to the scar or each other. These are called adhesion's which can cause a "burning sensation" or pain when changing body positions. See your OB MD for an examination to confirm if this is the problem or something else post surgery.