I know exactly what you mean. I can usually remember a majority of a dream, but I often have to rack my brain just to try and remember the rest of it and it's usually the most important or the main parts of the dream that messes me up.

At least it wasn't a nightmare! I still can't get rid of those nightmares I had while in that induced comma from last year. I guess it's really haunting me because they were nightmares I couldn't wake up from.