Hi David Just read your letter .Hoping that falling from your chair is only due to imbalance and not a nap attack.As this is just how it happens within seconds and I have literally falllen off my chair at the computor and in the evening when my meds are at lowest I gradually and very slowly find myself sloping over to one side. For the off on syndrome ask neuro about new medication entacapone suppose to help overcome the gap between the med doses.without increasing the sinemet. it is an inhibitor prventing the premature breakdown of levadopa before reaching the brain thus enabling the sinemet to produce the greater amount of dopomine. Happy landings Margaret Clark48/12/60