It is not just Docs and Academics that do surveys. The International Multiple sclerosis Federation has just done a survey of about 10,000 MSers in 100 countries reported in MS in Focus 2012
This reported that 86% of people said that FATIGUE was one of their 3 main symptoms and 62% of people recieved no medications for this symptom.
We are aware that there is a real unmet need for the treatment of fatigue. However understanding this and doing research on this subject is difficult and is near impossible in our furry friends. However the best thing to sort out fatigue is going to be getting decent drugs that stop disease. This was one of the noticable pluses with tysabri, which help offset some of the negatives