I have had a horrible headache for about 4 days now. I ve taken ibuprofen, tylenal, amd other pain medications in which none relieved the pain. Along with the horrible head pain or headache ive also haf chest pains that come and go as well as back pain, neck pain and pain near my gallbladder and appendix.i haven t been im car accidents nor have done anythingto pull muscle s. No pain medication has yet to relieve any of the pain. What should i do? What is the cause of this?