I had a client a few years back, who had a successful coaching practice. His BPD girlfriend had previously come to me a few times, but wasn't able to remain due to financial constraints. My client told me he often felt "worthless." Worthless is NOT a feeling state, incidentally. It's not an emotion, but rather a shame-based LABEL people tend to put on themselves, when they think they shouldn't have sensations of anger, frustration, sadness, emptiness or depression, and judge themselves harshly for feeling them!