I was this thinking about this today and was trying to get a clearer picture of the chronic emptiness that is a symptom of BPD. For me, I think it presents as a boredom with myself and with life. Certain activities, things and people interest me, but I can grow bored with them too. I've found that I have filled this emptiness with things that provide immediate, short-term gratification - alcohol, sex, video games. At the same time, I neglect relationships, work activities, and other things that my brain tells me will be healthy for me. Or I will get involved with relationships that have a lot of drama - just to feel alive. When there is not short-term gratification or drama, I feel lost.
How does this work for other people here? What have you found to fill that emptiness? Does it last?