Headache 
To dream of a headache simply refers to lack of direction or irrationality. Understand what your mind is trying to tell you through your dream and do not be blinded by your emotions.
Hangover
To dream of having a hangover indicates self-delusion in your waking life. Too much may be happening at once leaving you feeling overwhelmed. It suggests that you may be overdoing something, possibly working too hard to avoid facing the realities in your home or emotional life. A hangover in a dream suggests that some time away from your current work commitments may be beneficial at this time.
Pandora's Box
To dream of Pandora's Box suggests a belief that you are dangerous or evil. A toxic belief system may be at play. You could be protecting yourself against intimacy because you may hurt your loved ones.
To open Pandora's box is a strong indication that you may need to seek help in opening your heart and may, in fact, be ready to do so.
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