People react differently to all types of things. Ride a roller coaster lately? Some people find it exhilarating and other fear it to both extremes. As long as our surroundings change, so do our emotions. Feeling are, to some extent, predictable and we should be aware of this. When we put an action out into the world, it will make others feel a certain way that we can foresee. We feel sad when some picks on us. We feel happy when play in the schoolyard. There is nothing wrong with having feelings. What matters most is what we do with these feelings and understand why we have a certain feeling. When we feel an intense emotion, it is because of a chemical that is released from our brains.
Understanding the difference between negative and positive feelings is difficult for some children. We obviously would rather more positive feelings. If we have a negative feeling, we can evaluate the reason for this, and we can easily find a way back toward not being bothered by it. Often speaking to others about our emotions is the best way to work out emotions. If you find yourself in a situation where you do not feel safe or scared it is important to seek out a trusted adult to help you work through this.