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.
Please post your question in one of our medical support communities. Pressure/Pain when bending over. I am a 29 year old heart patient. I have some sort of connective tissue disease that has caused regurgitation in three of my valves as well as a bit of dilation in my aortic root.