Epidural question?

I got an epidural that ultimately didn’t work. They think there was a window to the left side of my body because my right side was numb but the left wasn’t. Ever since I gave birth my left leg has been in pain. It’s a weird pain consisting of soreness, numbness at times, throbbing, and just aching. It’s mostly in my calf/foot but also on my butt. Could this be from the epidural? I’m 6 days pp