question: My stomach has been very painfull for about 2 1/2 years.About 2 years ago i got in a car accadent and my back got hurt. Recently my neck sholders and arms have been hurting, it hurts most in my left shoulder .Even my jaw hurts. I have been to a lot of doctors and they have done a lot of test and cant find an answer.The only answer is that i have a bad stomach acid problem. Iam now taking a acid med twice a day i dont know the name of it right off hand but she said it helps with ulsers and acid in my chest. The med has been helping with my sour stomach problem but my neck, shoulder,arms,back and jaw still hurt. What do you think it is? can this be very bad?