First time making cider

[TheBigAR]

So i just finished racking my first 2 gallons of hard cider. I used gallon jugs of walmart pasturized cider 1 cup sugar each and fleshmanns yeast. Balloon with holes on top and 17 days later i racked into 2 glass carboys. When i took off the balloons it smelled like apple vodka or rubbing alcohol. Once i transfered the cider the smell mostly went away and just kinda smells like alcohol. The old gallon jugs still smell and im wondering if this could be just the yeast smell or if its bad. I didnt use any nutrient or anything else. Could it have been strained yeast? The balloon filled up quickly and seemed to bubble the whole time