5 miles!

I ran my longest run to date, 5miles!
I took it slow. 1/2 mile warm up jog, 4 miles @ 12:00 pace. and 1/2 mile cool down. Pretty awesome.
It felt good. My discouragement left me a couple days ago. I just need to stick with it!
I'm having alot of trouble with my back. At the 2.5 mile mark my back starts hurting........Almost to the point where I need to stop. I realize this is growing pains, it'll get better. I hope...Did I mention my knees hurt too. LOL!!!!!