My doctor suggested I post a video about what is going on with me. She said "someone in the world must have seen this before and know what to do." Please watch this video and share it with everyone you know. The convulsions last from 1 to 4 hours, and have been happening for over a year. They occur as a reaction to a trigger such as perfume The inability to control my knees started the first week of Sept. 2013. Be my superhero! AnswersForSam@gmail.com God is good all the time.