I have had a numb left foot, right side from toe to half way down. has lasted 2-3 months so far- anything to worry about?

The Mapping Game.: It is not so easy to come up with a reason for the type of numbness your having without being able to clinically examine the foot. More than likely the numbness is related to an irritation of a nerve in the foot, caused possibly by acute or chronic pressure. Map out the areas of numbness with a marker. Take a picture of it. Wait and see if the area reduces or increases. Then decide to see a doc.