How to find some of your invisible posts.

Go to your Profile, and select “Who counts me as a Contact?” (If no one, you’ll need to enlist someone to first mark you as one of their contacts.)

In turn, select each Member, and find the one whose Profile has the fewest number of Contacts.

On that member’s Profile, select “Posts from my Contacts.”

The resulting list will show posts made by you and any other of that member’s contacts during the last 3 days.