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.
The brachioradialis is the thick forearm muscle on the inside of your lower arm. Its fuction is to flex the forearm at the elbow. Recommended exercise: Wrist Curl with a Barbell or a Dumbbell. Wrist Flexors. The wrist flexors are 6 muscles on the inner front side of the forearm. They flex the wrist and close the fingers.