I'm 16 years old and started developing twitching episodes in my right middle finger and a few other places on my body a few days ago. My middle finger twitches pretty often throughout the whole day. I also have knee pain which is lasting nearly a month. My muscles sometimes feel weak and I'm frequently tired too. I don't really do anything much that invloves my fingers. Nobody in my family has this, but then again the majority of people who do get diagnosed with it, don't have a familial history of ALS. If this has anything to do with it, I did a blood test a month ago and the results came back fine. I also managed to do everything on the foot drop strength test. Do you think it's possible that I have ALS? Any answers will be greatly appreciated. Thank you.