Over the last few days I ve noticed a dull ache in my lower right abdominal area associated aches in my testicles and lower back. I am also constipated. Yesterday, and strangest of all, I began noticing an unusual odor emanating from my groin area- I ve never experienced this. I m 63 years old, and still have my appendix. I ve had some recurring issues that were diagnosed and treated as prostatitis. I had a colonoscopy about 6-months ago, and a rectal ultrasound about a year ago- both were normal.