Good luck with your Neurologist when you go and see him, I hope everything goes OK. Please let us know how you get on.
My pains increased because of the weather too, its not snowed a lot here but it is VERY windy and keeps raining.
Take care
You are in my thoughts
PS: I hope you get good grades in your exams. I have just started home tuition, my tutor is really nice and friendly and he allows me to have breaks when the pain gets too bad.