Need a massage

I've been getting stiff shoulders of late. I think it's the way I use the computer or my posture in my office chair. Usually by the end of the day I end up with little stiff lumps in the muscles of my shoulders which become numb after a while. Apparently it left untreated, it can cause quite a bit of problem in the future when we get older. I think I sorely need a massage. Any good ones to volunteer?