Chesty is correct, I don't associate tendonitus with shoulder pain but rather in the arms, deca will not help tendonitus (if that is what you have) a pain in the shoulder doesnt automatically mean tendonitus.
Are you positive it is tendonitis? If so you have to eliminate all the lifts that cause pain, and it will slowly go away on its own. It will only get worse if you try to lift through the pain. I had a bad bout with tendonitis my first few cycles. I do not think it is entirely uncommon with...
The Ttokkyo Winny tabs are quality and potent. They got tested recently it was posted on this board as well as some others, I cannot recall the exact count but it was at or above labeled claims.