Hello, I am brand spanking new to homebrewing, thanks to a birthday gift my girlfriend picked up for me off of brooklyn brew shop's website. She got me an oatmeal stout starter pack and dove right into it. My problem is that after pitching the yeast, which had no identification or weight on it, has been acting oddly since I tossed it in. After the first 12 hours it was bubbling up a storm. 12 hours later, hardly a single bubble. I am now sitting at about 42 hours since pitching and it looks like it has all settled on the bottle of the fermentor. I have been monitoring the temperature incessantly and it is at a solid 66-67 degrees F. Unfortunately there is no where else to store it in my house that is warmer. Am I just being overly worried, or is this a problem?