On 4/27, I had an epidural steroid injection at L4 L5 disc. I was reading that stomach ulcers could be a side effect. On May 1st I started having chest pains right around my breastbone and in my upper abdomen. At first I thought it was severe indigestion from eating a late late dinner. And the pain has become constant and made worse by eating or drinking, including water. It also hurts when I take a breath and the pain is also in my back. (Straight though where the upper abdomen pain is.)