well... ive been smoking everyday for 2 years, with no hangovers, or aftereffects. Then, last week i took a break of 4 days. After it, i smoked, and become completly blazed... almost like my first times... and after it, until today (4 days after) im feeling my fingertips numb. It only had happened the first times i smoked, when i would keep feeling my fingertips numb almost one week after the days i smoked.

So, for me it seems when your tolerance is low, there is some effects which can remain for a long time after you smoke. Specially if you become soo much stoned. It shall fade with the time, or with the tolerance. If it does not, think about going to a doctor.