You hit every feature/bullet point for BPD. It's interesting, I work with women who have BPD, C-Ptsd;PTSD and BP(BD ; Bipolar disorder)
I never met anyone who was such a perfect BPD match. It's the roughest mental illness we know of. It usually gets worse every 6-12months until about age 70.
If you are a woman it fits better too. You mentioned some things that imply you are an empath or gifted. But that is more rare than BPD & I doubt it.
Most likely you have been misdiagnosed with BP. Often C-PTSD is co-occuring. It is very important you get the proper diagnose. Want to talk about life, drama, BS or just sh*try people. You probably run into people who use, exploit or abuse you frequently. It is not fair or ok. Do you hear, " you are too sensitive" slot?
Research BPD it fits. While it is understood most therapists know very little about it. Even less know DBT.