Plz Help, Having nightly dreams about bear attacks, every night for a week. What does this mean?

For the last week, everynight. I have been having vivid dreams about bears pursing me. The bear never actually gets a hold of me. For example, in dream 1, I was walking threw the forrest following a creek, I was lost trying to find my way out, and I was coming around a bend. Then I looked and noticed a massive black bear drinking from the water a few hundred feet ahead. I stopped suddenly, then the bear stopped drinking and looked at me, it stared at me for about 30 second before it came charging at me, I turned and began running the other direction. I woke up in a pool of sweat here in my bed, it was so surreal. Last night I had a dream that I was visiting family and was bringing grocerys into my grandparents house from the store for them, when a bear walked up to the front door. Quickly I slammed the door, and the bear sat there staring at us threw the glass door. I woke up sweating again. I have never had a series of nightmarish dreams about the same subject repeatedly. What could this be?