Post LP Backache

Hello.  I had an LP 7 months ago to rule out suspected meningitis, which came out negative.  I needed a blood patch a few days later.  During the blood patch, the doctor seemed to "hit" something in my back, causing a lot of pain.  I got through it though and was told to expect a backache for the next 6 weeks or so.  I still have the backache.  I am so stiff, and walking, standing, or sitting for more than 10 minutes has me stiff and hurting.  I can't even turn at the waist.  What could be wrong?  I know that it must be related to the LP, but I don't know how.  PLease help shed some light for me.  I am 34 years old, active, and otherwise healthy; I am just so tired of hurting.  Thank you.         Linda