Messed up my shoulder again

After working a trade show in Orlando, I popped my shoulder.  I don't know exactly what happened, but the soulder made a popping noise and now my hands vary between aching and bnumbness.  This makes is very difficult to play the drums or draw for more than a few minutes.  Below is my first attempt lately.  This is a drawing of an old Cyclone motorcycle engine from the early part of the last century.  T-shirts with a version of this design and many others are available from www.zazzle.com/kimwood  Please see if there is anything you like.  If there is a drawing I've done that you would like on a shirt, just e-mail me and I will post it at zazzle.