I've been burying my head about this for weeks and weeks now 
I've got the following symptoms and have had them on and off for at least two months now:
All started with on and off extreme nausea, never sick, just didn't know what to do with myself.
One day I had blurred vision in my left eye to the point I could hardly see.
On and off blurred vision in both eyes.
Sharp pains in my head, and a feeling of pressure in my head.
Aching joints.
Numbness in my left arm and fingers and bizarrely behind my teeth.
Numbness in my face, when I talk I feel like my face is not moving.
Losing my balance (a lot) particularly when standing from sitting.
Feeling as if my head doesn't belong to me, hard to explain, but I just don't feel right.
I know I need to got to the docs, but I'm petrified its something serious and they will fob me off.
What do I need to say for it to be taken seriously?
What could it be?