Viper, I have one more thing to add, pal. I was rushing around, doing other things, so I didnt see the part of your post about chest pains. Although Iam not a doctor, at your young age it is probably likely that those pains were caused by stress and anxiety, from the dream, and maybe other things. I passed out once and had high BP readings about 5 years ago from stress, and, after some tests, and a number of weeks of lifestyle changes, my bp went down to normal, and they concluded that the passing out was from stress. Were I you, I'd see your doctor about both the chest pains, and the depression. Maybe he can perscribe anti anxiety meds, as someone else suggested. What you are experiencing can happen to people who are under extreme stress. Things like nightmares, and chest pains. I would seek medical attention, because perhaps they can make you feel better.
I hope the support of your friends helps. PM me anytime if you just need to talk. We are all here for you, and the medical attention could help you too. Good Luck.
Mitch
In this realm I might give but no one will EVER get me to agree to receive, so don't go getting too funky on me too fast, m'kay? 
