I've been experiencing lingering thoughts of death, doom & gloom, and dread for about a month now. Just last night, I was trying to go to sleep and kept waking up every half hour because my brain was over-analyzing every little flutter of a muscle or minor twinge of pain as the beginning stages of a heart attack and that this was it. But here I am, alive. It is hard to deal with because I feel like it's keeping me from enjoying the little things in life.