I had an epidural both times, and both times it worked on one side far more then the other. The 2nd one caused a DURAL RUPTURE HEADACHE.
Yikes - unable to sit or stand, if I did then spontaneous projectile vomit! Headache? Ha. It truly felt like being hit, nay, whacked on the back of the head with an iron bar.
The ONLY treatments are 1. stay horizontal for ONE WEEK - fine, but who is gonna take care of your new, tiny baby? or 2. a 'blood patch' - they take blood from your arm and inject it into the epidural site so that the clotted blood seals the hole in your dural membrane.
Painkillers DO NOT WORK. Do not let your hospital kid you... THE DRUGS DON'T WORK! I went for option 2, and each time it lasted 24 to 36 hours, so I had 3 patches. Eventually, after the last one wore off, I was able to control the pain by taking 2xIbuprofen plus 2xParacetamol every 4 hours.
After about a week I was good as new! Running around, wearing high heels - but I did have a swelling and tenderness around the epidural site.
That said, I would advise anyone to have an epidural plus an induction - thus super fast labour without pain! My friend had the best time that way at The Portland... her anaesthetist was actually fantastic!