Magic Forums

So, I used to have very vivid dreams and would almost always remember pretty much everything that happened, even if it wasn't exciting or worth remembering. However, in the past month or so, when I have dreams, I can't remember them at all and I have no idea why. Occasionally, I will see something that will trigger an image from a dream, but I can't remember anything else so the image makes no sense and is quickly forgotten. Any idea why this is happening? Is it odd or does this normally happen?