Luke,
My name is Matt, I am 36 now and for about 4-5 years now i have been having symptoms that i thought were pointing to ALS. I saw many doctors and had all sorts of tests. To this day i don't know what is wrong with me but I can definitely say that i don't feel anything like i did before all of those symptoms started. I was a very active person, played lots of sorts and would consider myself pretty energetic. Today, it's all the opposite, I feel drained, hands get stiff from typing, legs get super tired from really nothing! Yet, despite what i would call a progression of symptoms, doctors find everything is normal. I twitch all over and cramp up regularly. I feel physically limited compared to before. I can find common symptoms when reading on ALS, CFS, BFS, mitochondria disease and lyme disease. However, no diagnosis for any of these....well, except the chronic lyme disease thing...but that is another story/myth/ to deal with. you can check out LLDM doctors and see for yourself