Alan,
Yes, I experience that hand and finger problem from time to time, usually in the afternoon when it happens. I haven't been able to relate that phenomenon to anything particular.
Erin,
Watch out for potassium excess, I think the normal values for potassium in the blood are between 3.5 and 5.1 mmol/l.
Potassium in excess can also give probems…you should ask you neuro and request some blood tests…aoutch!
Maurice.