<<Disclaimer: Verify this information before applying it to your situation.>> I also have the same problem. I felt this gradually coming on and then a year ago my arm became so bad I could not use it and the pain was excruciating. I had several months of physical therapy which helped some and then stopped. The pain comes back whenever I do anything other than the bare minimum--I can't vacuum, clean windows, scrub floors, weed the flower bed, etc. I have a hard accepting that as one Dr. put it, "I have a physical impairment." Believe me, I have spent hundreds of dollars trying to find an answer to the problem, but no one has that answer. Maybe it is related to sprue . . . but then again can we relate everything to sprue? Have a good day.