Looking at the settings in Flickr, the only one I can see that you would change is the one that asks
Hide your stuff from public searches
Which says, when you click on the "?" - Hide your photos from API-based searches done outside of the Flickr website.
You may have to redo all the links, that is go through your posts and relink the images.
I hope this isn't the case, but possible.
I have looked at a couple of your other posts and see the white box saying image is unavailable, but clicking on the box takes you to Flickr and you can see the image, so not a total loss...yet