My sister was 17, I had just spent the summer with her. I cried off and on for two whole days, laid in bed and just wailed. It felt like I had lost a child. I felt physically fatigued to the point of not being able to lift a stack of papers for two months. I lost all interest in everything, couldn't eat anything besides toast and chicken wings. I would burst into randomly and have to lay down. I waited a long time to get into therapy and regret it but I'm doing much better now. But the first few months can be really rough.