Please help me! I am a 20 year old sophomore in college, and ever since I started college it seems it has triggered this HUGE form of depression. Recently it has gotten even worse! Maybe about 1-2 a month a get in a deep dark depression lasting anywhere between a few days to a week. While in these depressions I cry all day, I am overly sensitive, my moods are unpredictable and any minor little thing sets these moods/depression off! Then afterwards I am fine. Happy like nothing happened! The moods last for maybe 2-3 hours (while in the week) and I'm out of them. They may come back but rarely, I'm happy again until the next small thing sets me off into this dark depression. I get very suicidal. This has also gotten worse. While in these depressions I think about death and killing myself. My family has a history of mental illness (bipolar, schizophrenia, depression). Also since recognizing this behavior I've noticed I've became very reckless (while driving and with sex), I don't care about college like I use to my grades are dropping and I may get kicked out. In high school my grades were very important to me! I am alone a lot (but I am social while out). I only have one friend, who is not a very good one and I don't seem to be as eager as I was to make new friendships! Please help me! Is this BPD? Also nothing traumatizing has happened to me. I don't get excited about anything. My birthday is coming up and all I can do is cry. I use to love my birthday. Now I'm so depressed. What is this? Thank you.