We recently wrote about how can you hide photos on your new facebook profile page, just in case you have already hidden some photos on your facebook profile page you can easily unhide them all and they will start showing up on your facebook profile page.
Follow the procedure below to unhide the facebook profile photos in which you are tagged in.
1. Login to facebook.com
2. Go to your facebook profile page, and then click Edit profile as shown in the image below.
3. Under Edit profile, Click Profile Picture shown under left pane.
4. Now click the button Unhide All to show up all the hidden photos on your facebook profile in which you are tagged in.