What Causes Severe Pain In The Arm Pits, Groin And Breasts?

I was diagnosed with ankylosing spondilitis in 1999 and am under the care of a rheumatologist at the University of Michigan Hospital. About two years ago, I began experiencing pain under my armpits, in my breasts, in my groin. My breasts leak drops of a clear fluid and the pain increases significantly under my arm pits, groin and breasts increases when I receive a drug for Ankylosing Spondiltis that lowers my immune system. General anethesia and local anethesia also cause significant pain under my arm pits, in my groin, and in my breasts...and it takes about one month for the pain to subside after receiving anesthesia. But these areas of pain (Under arm pits, in groin, and the breasts) are not swollen, they are only painful. What can you say about this?