You are being treated for heartburn or hiatal hernia, and you feel sudden chest or stomach pain, have difficulty swallowing, are vomiting, or are unable to have a bowel movement or pass gas; you may have a hernia that has become obstructed or strangulated, which are emergencies.
One strong possibility for your symptom is gall bladder stones and cholesterol deposits within the gall bladder which can cause sharp pain. Getting an ultrasound of the upper abdomen done in a walk in clinic or the ER will confirm the diagnosis.
A Bakers Cyst is a common cause of upper calf pain caused by inflammation of the popliteal bursa (fluid filled sac) that sits behind the knee joint. It can cause calf muscle pain, particularly if the cyst bursts resulting in the fluid tracking down the leg into the triceps surae.