When you see details about things that are going to occur in the future it is called a premonition. It may be uncomfortable to have them and many people describe the feelings as uneasiness, nervousness, anxiousness, or simply being disquiet. These feelings are there even if the premonition is not about something that is negative. With that said, many of the premonitions are certainly in regards to an event that is unpleasant like a disaster that is coming for someone or for someone that they love.