I have no family history, and the way my symptoms developed led my Neurologist to consider Episodic Ataxia, I was tested but I’m negative for current types.
Initially troublesome symptoms seem to come in ‘episodes’…and the times in between I was able to carry on as normal. Then I noticed there were ‘triggers’…if I became overtired symptoms would kick in.
I’m reviewed every 12mths by my Neurologist, usually it’s a case of ‘rubberstamping’ but I try to stay optimistic…
I have similar experience as you- I have familial SCA 2.