"Ring of fire"

I had my first baby in 2013. I had an epidural but I believe it wore off due to the intense pain I felt (like my vagina was being burned and ripped off lol), and of course I felt the needle piercing my vagina when the doc was stitching me up-- I bitched so much that she finally numbed me down there before continuing. My question is, DID my epidural wear off? Aren't you only supposed to feel "pressure" when you have an epidural? We're TTC #2 and the thought of giving birth again is making me 2nd guess TTC