I'm making holiday ale with honey, orange rind and ginger. The yeast I used was a liquid American Ale yeast (East Coast). Fermentation started about 10 hrs in, but now I'm at 11 days and still seeing bubbles every 35-40 seconds in the carboy airlock. It's kind of freaking me out that it's still fermenting. Is this okay? My other couple of batches ended in a week. Please, just tell me everything's alright...