so today i noticed some white smoke puff out my exhaust on my way to work then shortly after that i smelled coolant coming from my vents. so upon my arrival to work i checked under the hood did not see coolant coming from the degas bottle nor did i smell it either under the hood. now i have been losing coolant before and have checking and refilling it but i still have no idea where is the missing coolant goes. could my heater core be cause? i do have a heating issue as well during the winter. also this the only time i have smelled coolant in cab. any techs on that could give their input or anyone else who has had similar experience.