I've been wondering about this myself, too. I haven't been officially diagnosed with either AvPD or SPS, but I seem to fit the bill in both respects. I have been diagnosed with Complex PTSD. My abuse was intense, with no non-abusive behavior to act as a contrast. Everyone's hatred of me feels like a firehose in my face, all the time. They say we're "too sensitive" when in reality they're insensitive.