C-ptsd is not yet recognised in the DSM or the European manual (can't remember the name!) so unfortunately this diagnosis cannot be officially made. In DSM 5 there is a subtype of ptsd as complex type but I'm not sure what the criteria is. There are still journal papers and research on c-ptsd but they won't yet recognise it officially. There is huge overlap between BPD and c-ptsd and I do agree that they should seriously consider reclassifying BPD as a trauma disorder.
I have been diagnosed with both BPD and ptsd, my therapist stated that he felt BPD to be essentially prolonged ptsd. Are you in therapy? You could ask your therapist or pdoc to go through the ptsd criteria with you. It's a real shame that these pd's have such a stigma especially when you consider the abuse suffered that caused the pd's in the first place.