What Causes Weak Knees Along With Dry Vaginal Area In An Epileptic Patient?

Hi, my girlfriend and I were on a date, we started having sex, immediately after we finished, she became very ill, she seemed to have a small seizure several minutes later (she is epileptic), she used the bathroom and everything was fine, but she says that some times she is okay, sometimes her intestines want to fall out, whether she is standing up or not does not matter. Her vaginal area was rather dry; what is going on?? On a side note she is struggling to walk due to weak knees.