Hi.
Thanks for your query and an elucidate history.
Read and understood that your have a problem of right
shoulder pain and pain in the right jaw. This is so much so that is enhanced during pregnancy, had been to ER and they found nothing, Started on Zantac 150 for severe reflux.
The pain is in the right shoulder *blade. This is the point that can have
referred pain due to
esophagitis as you already have symptoms of GERD that is
gastroesophageal reflux disease.
Increased intra-abdominal pressure due to pregnancy can enhance the effects of the GERD.
Zantac helps only to reduce the acidity, GERD will need additional therapy in tehform of :
Avoid hot and spicy food,
light soft diet.
Motility regulator like
Domperidone and antacid will further help.
Being pregnant may not allow for Endoscopy.
This will help to get control over sharp pain in the right shoulder blade.