Where do my notifications go?

I’m still new to WordPress, and so far I don’t have any complaints… except this one: why do I not get all of my notifications?! The little bell lights up, and I see there’s something new, and I always do my best to at least “like” the comments, since someone was good enough to bother to read my little blog and to take the time to say something about it. I appreciate that so much, and of course I want people to know it. But then I find comments that I never saw in my notifications! Is it me? Am I doing something wrong? So far I have a small blog, so it isn’t terribly hard to go back and read all of the comments on every post to find the ones I missed, but I can see it getting to be a chore. And I don’t want to overlook any.

Am I the only one? Is there a way to make it stop?