C.N.
Hey there,
I also had a bad epidural with my first child. I also had my spinal fluid puctured and was having the worst headaches you can possibly imagine everytime I sat up. You need to go back to the doctor, it sounds like the blood patch didn't work. Once I had the blood patch my headaches went right away. It sounds like they need to do it again. As far as the backaches, I did have aches for the first couple of weeks after my baby was born. My back looked like I had been in a war, it was so black and blue because the doctor could'nt find my epidural canal, he at least poked my about 8 times. At that point I told him to get off my back because my contractions were so strong that my daughter came out about 10 min later. When I wnt to try and stand up that was when I realized he got some of the epidural in my back. The whole left side of my body was numb. Needless to say my next two deliveries were natural.
Hope this helps :-)