I am sorry if I am a pain with all my questions, but my boyfriend and I have just been for genetic screening and it turns out he has a heightened chance for autosomal dominant cerebellar ataxia - something that I never even heard of before. Now, all of sudden, we are confronted with polyomyoclonus.... That's something I REALLY have no clue about. Please, can someone explain this to me? In plain English please!