I'm not to sure if this is posted in the correct section so I apologise if it is not.
Basically, when my legs are relaxed they are fine, if I lay down and tense them they are also fine. The problem is when my legs are at an angle they shake violently. For example walking down the stairs, each leg will shake violently, and if i stand up and angle my knees they shake violently. If i do lay down and raise my legs they also shake. This seems to be fairly new with me. I never experienced this problem before. I use to participate in karate lessons which requires me to have a certain stance and my legs were fine. No one in my family also suffers from this.
Any ideas or help what this might be?
Thanks.