A lot of times, mucoid placque is still attached to the walls of the colon an dso it hurts as it pulls away, much like a scab on skin does. So it could be that. It helps to do another enema and really massage the area and the soles of your feet.
If you have small bits of stool blocking the appendix, it can get infected. Take your temperature, if it raises you're dealing with an infection. In the meantime, just to be safe, take probiotics. They will help the appendix and colon overall. :)
Hope that helps! :)