I understand completely, it seems that our emotions carry over into our waking life, but I have noticed that this happens more with bad dreams and less with good dreams. I do not remember many days that I carried over good feelings from a dream, but I can remember carrying over bad feelings from a dream. I believe it is because bad dreams have such a negative impact on us that we choose to remember the hurt as a way to protect ourselves from future hurt. Just my opinion not a proven fact.