Well I went out and did another 30 miles. I must report that my back felt a lot better this time. I know this probably sounds dumb, but I think I need to learn how to ride this bike. I notic ethat if I really get my weight forward it's easier to ride. Anyway, it's been a fun experience.
Any tips on how to in drop bars. assume I know nothing.

As to getting a hybrid, I will consider it but I'm not done giveing the drop bars a shot.