Hi Faerie, welcome to the forum. Yep... its sounds like PTSD to me from what your describing symptom wise. Your doctor will obviously work that one out though. Rape certainly does it though. As your discovering now, your life went to custard for a while, then good, and now PTSD comes back around. Often we don't know we have things at the time, suffer an outbreak of symptoms, recover for a while, then they come back worse than before. The cycle pretty much continues until you shutdown completely... with no place left to go except suicide or healing. Hopefully the later is the optimal choice for everyone.

The depression is why you sleep. Your depression that you say you've had as long as you can remember, that intrigues me though. Why have you suffered depression? There would be something within your life that has caused it, you just may not know it yet... hopefully you do though.