I had my appendix removed 3 weeks ago, and I am still experiencing a lot of pain, inside where my appendix was. Burning and sharp pains. THis comes and goes, but as I work a full day on my feet, it tends to hurt a lot after work. Lately, it has really hurt after I urinate. nothing with my urine is unusual. ( no burning down there or odd smells.) It just kills my appendix area. Should I be concerned?