When i first start the car white smoke is coming from the engine it smells too. on 1995 Oldsmobile 88

When the car warms up i do not notice the problem.What could the problem be? The car has 99000 miles on it.

Asked by for the 1995 Oldsmobile 88
Loosing any antifreeze and cant find a leak? Run rough for a min. then clear up when first started cold?