<s>[INST] Yesterday I had a lower lumbar epidural steroid injection. I ve had the worse headache ever & my heartbeat is racing since then. I ve had 3 already in my upper neck area. This is my 2nd one in the lower lumbar. I ve never felt this after the others. Should I be worried? I had to cancel plans due this horrible headache & racing heartbeat. It has me a little worried. [/INST] Hi welcome to ChatDoctorForum. It appears that the symptoms have nothing to do with the injection as you have already taken them. It may due to infection of the tissues at the site of injection.  But don't worry by administering proper Chat Doctor. I advise you to consult your doctor who gave the injection, he will be successful to provide the solution.  Besides I advise you some diet recommendations as avoid taking spices chilies junk foods oily foods. Thanks for calling. </s>