My Threads Not Listed in my Account

I have posted three questions, most recently on August 19, but my Community account (through which I am posting this question) shows no posted questions. Under the "Participation" tab, it says I have "3 Participation in threads" none of which is hyperlinked. And under the "Subscriptions" tab it says "There is no recent content available," and no threads are listed. I can't find a way to set preference of timeframe or threads listed anywhere else in my account. Why aren't my created and commented threads showing up in my account?