It's more likely that you're not remembering your dreams. When I kept a dream journal, it became clear how easy it is to forget them. If I woke up in the middle of one, the longer I waited before I wrote it down, the harder it was to remember. It was also harder to remember further back into what dream I was recalling, as well as dreams preceding it. The next day, I would read them and have no recollection of much of the contents that I had written that night before. If I hadn't written them down, I'd be totally unaware they were even occuring.
I believe most of the dreams we remember are only because 1) we wake up midway within them and 2) their content happens to be somehow memorable. For part one, this can actually indicate poor quality sleep. Periodic nighttime alertness is a great way to remember more dreams. You may currently be experiencing better quality sleep than you used to.