I have had EA2 & Familial Hemiplegic Migraine since I was around 3 months old..... (although was't diagnosed until adulthood) my daughter also inherited it with symptoms noticeable from birth.... Her daughter (my granddaughter) is also showing symptoms from birth (she is now 5 months old)
My Granddaughter had her first appointment at Great Ormond Street yesterday, and although they have to rule out a few other things, doc basically said this is a matter of formality.... as they are expecting to give a diagnosis the same as her mother & I .... but many docs keep saying this shouldn't show in young babies.... but we have 3 generations now proving them wrong.... ( my daughter & I have a private gene)....