Sorry to hear about your pain. I think the others who have replied have researched crps and seen more stories than me, so I don't have much to add. I just wanted to say that my crps is pretty mild. Before I got treatment, my pain level was probably a 6 on my worst days. I never stopped being able to walk (crps is in left foot), and have not limped since the first two or three months.

Just wanted to add this so you know that pain you describe as about a 5 may not be inconsistent with crps.