Ok, so I did something stupid and did more reading on the site

. I kept reading to keep the fermenter cool, keep it cool, keep it coolish. I was running at about 70-72 and my yeast recommended temp was 65-74. I kept reading that the lower end was better, so I thought I would try to cool it down so that I wouldn't get the off flavors I kept reading about, so I put it in a swamp cooler and got it down to 66-67. Now the bubbling has stopped for the most part and I am worried that I knocked the yeast out, what the heck should I do now?