I've always been a bicycler, although it has only been in the last year or so that I have become infatuted with road biking. I commute between 20 and 40 miles a day - up and down steep hills on patched-potholed-gravelly Colorado roads - on my Fuji CCR 3. I was fitted to the bike. I'm really short (5'1') and I had to put a shorter stem and narrower handle bars on so I could reach the brakes comfortably.

I get some numbness in my right arm and hand, which I can relieve by dangling it at my side. It seems like my elbows are always sore, although I am not convinced this isn't (at least in part) from that bouldering sesson last week or the palm sander I've been using for my deck repair. I try to keep my grip relaxed and my elbows slightly bent when I ride. I carry a messenger-style bag that is usually fairly light.

I just graduated from nursing school and I am flat broke. Does anyone have a suggestion for cheap/free adjustments (to the bike or myself) which may alleviate my numbness and pain?
Thanks.