Welcome to PC.

I am glad you found us as it seems that you are seeking support. I hope you find this site as supportive as so many of us here have.
SI is a coping mechanism when thigs get overwhelming. That can be either end of the spectrum. Sometimes to feel and sometimes to not feel so much.
I know I have a job and I don't think anyone even imagines that I SI. I wouldn't be surprised if that is true of many of the people on this forum.
I hope you find what you are looking for in PC. Take care.