I spiraled like crazy after my bpd diagnoses. I was also undiagnosed bp at the time so that may of had something to do with it as I was manic at the time. I agree with the above, you are still the same person you were before the diagnoses its just you are aware now. Oh if I would of reached out many years ago things would be a lot different today lol. Try to just stay in the present and work on today until this overwhelming feeling passes. That's my best advice.