Does anyone suffer from insomnia, is it another symptom of Ataxia. (Only just been diagnosed) Crazy, during the daytime exhaustion suddenly overwhelms me but then when I go to bed at night I toss and turn for a couple of hours, usually experiencing cramping pains until I finally give in and get up to make a warm drink. Returning to bed at about 4 to try to get at least 3 hours sleep. I take nortriptyline but it doesn't seem to work anymore. Yet another thing to get used to.