Psychological / emotional perspective: When pressure is put on us emotionally, the feeling may be exaggerated in dreams to a sense of harassment, behaviour which is offensive to us. We may dream of stalkers or being hunted.... Dream Meanings of Versatile
Material aspects: Stress is one of the biggest disturbers of dreams and sleep. It can translate into dreams of harassment, for instance being worried or jumped on by a dog. Once the cause is identified it can be dealt with by confronting the dog image either in the dream or in a waking visualization.... Dream Meanings of Versatile
Gives gender - specific: To be harassed in a dream by the opposite sex suggests that a man must pay attention to his softer side and a woman to her more assertive aspects. By a figure of the same sex suggests that a better balance needs to be established between the archetypes.
The dream character will usually indicate what needs attention.... Dream Meanings of Versatile
Feeling haunted by something or someone is a sign of severe restlessness, the cause of which has not yet been discovered by the dreamer.
It is possible that feelings of guilt are affecting your sleeping. However, it is also possible you need to face a problem that, so far, you have consciously refused to see.... The Big Dictionary of Dreams