I'm with you. Since my diagnosis is pretty new & my family does not want to hear about it, I love PC. I get to relate, learn, vent, make friends, get advice...
Laugh with people, cry with people, care about people, sometimes yet annoyed by people (not you)...
I'm sure I can get annoying myself. I'm striving to be more upbeat, but I can be whiney. I can often find someone who has been through similar experiences.
In the process I do learn more about myself.