iCloud Photo Sharing Help!!

I’ve been using iCloud photo sharing for years and I threw a bunch of vacation photos and videos into my album while on vacation. The album on my phone shows the videos and shows x amount in album, if I share it via link or look on my other devices the number of items in album is less. It doesn’t have these videos. I am so upset to think I may have lost them. They won’t play when in the album on my phone. How can I retrieve these? I could cry, these were core memories I made and I hate to think they were lost forever 😩😭 Any advice is appreciated TIA!!!!