Trust is an issue for everyone here. You are welcomed to share only what you feel comfortable with... and how and where. You might want to share some things only in PM, some in chat. You can even tell whomever you share with to not share it with others...
This is a good support board, and anything that isn't supportive just isn't condoned.
Whatever you wish to share is fine! Most of the members here have not shared everything.
Welcome again, I think you are fitting in well!