I'm a teenage girl that gets depressed at night. I got this often when I was younger but it has been gone many years now. But it came back yesterday. The feeling is just the same as it felt before. It comes sudden, and then my eyes start watering like I'm about to cry and my throat starts tightening and my chest feels heavy and I start missing my family even if they're in the room beside me and the only thing I want to do is to lay in their arms and hug them. In the day I feel so happy, positive and productive but around six pm or later I feel the opposite of that. Today I was home from school because I felt so bad the whole night and didn't sleep until 4am. I don't know whats wrong with me or how to make it better. If somebody has some help or advice please let me know.