BritishBeef,I am glad you posted your fears and sx here in the forum. You have done the right thing in seeking out a medical opinion and it is good that this Dr. is a Neurologist. Until your appointment try to stay in the moment. Don't get caught up if "what if?" thinking.
We spend hours and hours dwelling and ruminating on the negative and fearful things in our lives. We worry about what could go wrong, instead of focusing and paying attention to the rational, the positive and the good.
It's about time we started paying attention to what is rational and right.
A contented person is fully caught up in the moment - and is not thinking about the past or the future.
Too much thinking and analyzing just makes any problem worse. Today is a wonderful day – live it in the present.
Please know we are here for you and keep talking with us.