Hey Jo,
My right hand touches my nose, but left went right to the middle of my forehead, but my doc hasn't done that test since I was DX, back in May. I am not using any walking aids, altho I think it could be helpful sometimes.
I am having an exacerbation as well. I just did the "finger to nose" test myself, left finger hit middle of eye brow
I know how you feel about doubting you Doc.
Keep the faith!!
HUGSS