I never heard of this symptom and never asssociated it with medication. Sometimes the bottom of my feet are very tender. When I wake up sometimes I just limp around for a little until they get better or if I go back in bed and get back up about half hour later then they are fine. Also sometimes when I sit in a chair and get up the same feeling happens although not as bad but I was sitting for a shorter period of time too.
Are these symptoms similer to what others have?