Hi I am 20 year old female and about a year and 2 months ago i tore my MCL in my left knee and stretched out the LCL in it as well. The Dr. that saw me said it was either a 2nd or 3rd stage tear of the MCL. They did x-rays and i did not tear any cartilage in my knee. So i was put on crutches, pain meds, a muscle relaxer for night, and told to ice it. I stayed on the crutches for about 2 months before i started walking on it. During that time my knee would twitch frequently but after some time of healing it stopped. Then about 2 months ago i went to the chiropractor and while i was there he tested me knee and said that it was still at least a stage 1 tear. In the past 2 weeks my knee has been twitching multiple times a day and very rapidly at the same place the MCL tore. It will last for 2-5 minutes each time it occurs. I wanted to know if there is a reason for this twitching and if it is something i should be concerned about. I know my knee isn't fully healed and i also wanted to know how long it might be before it is completely healed. I do a lot with my knee including being down on my knees for long periods of time, lifting a elderly lady who weighs 125 pounds many times a week, and playing tennis. It does hurt and swell some days when i do a lot with it especially when playing tennis. I wanted to know if doing these things will cause it to heal slowly or cause more damage to the knee. If you could let me know the answers to my questions that would be wonderful. I hope i gave as much information as was needed. Thank you