Wow Captain Al, someone just asked me that exact same question two days ago. What I have done is copied my reply to her and pasted it here for you.
Here it is:
My interest in ALS, you ask:
I've always had an "interest" in the disease, but that interest grew exponentially when I thought I actually had it. I knew enough about ALS to scare the crap out of myself but not enough about it to relieve my fears. I made the mistake of self-diagnosing myself and was then fortunate enough to find this wonderful forum. I came here as scared as the next person and found so much patience and support as I presented my symptoms and concerns. I subsequently saw three different neuros, have had two EMG's (the latest one was very thorough) and have been told with 99.9% certainty I don't have ALS. It's that 0.1% that wreaks havoc with my mind from time to time. I have yet to see improvement in my condition, but I have been told I need to be patient, a virtue I unfortunately do not have.
I have made many friends on here and I simply do not want to leave. I stood in their shoes for a very short time when I thought I had ALS and it was quite frightening. I had the fortune of being able to step out of those shoes, which is unfortunately a luxury they do not have. The people on here amaze me with their courage and their outlook on life. It's ashame not everyone in the world is more like them, because the world would certainly be a better place. They are here helping people . . . people they don't know . . . at a very difficult time in their life. That simply humbles me.
I guess I really haven't answered your question yet, have I. I want to learn as much as I possibly can about ALS because I want to give it a voice. I want to call attention to it and I want to be armed with as much knowledge as I do it. So I have learned from the many people on here and have done an immense amount of research and I will continue to do so. I want to make a difference and fortunately I am in a position to do so. I not only owe it to these amazing people but I almost feel obligated.
That was the end of my reply to her.
You also ask if I have a medical background: I have a Master's degree in Physiology and a Ph.D. in Biomedical Sciences. I was a neuroscientist for nearly 10 years and now I am a professor at a University teaching in the nursing and medical schools. Not exactly a medical background but darn close.