Nightmare
Whenever Sam had a nightmare, he would sneak downstairs and outside to talk to Bumblebee about it. The cheerful Autobot could always chase away the lingering images of blood; no matter how many times Sam woke up screaming into his pillow.
Unfortunately, Sam would occasionally have nightmares while he was staying on base with the other Autobots as well.
The first time it happened, he had accidentally put every Cybertronian on high alert, all immediately assuming their friend was in danger.
He had explained that he was fine, to Hide's cannons no less, but that hadn't stopped Ratchet from examining him for hours before reluctantly accepting the fact that the young Prime was not dying and allowed Sam to return to bed.
All of the Bots had worried over the nightmare Sam was plagued with, but he promised them he would be okay, over and over.
And Sam would be, because yeah, the nightmare was horrifying, but he knew that he would wake up, and those that loved him would be waiting, and they were worth all of the nightmares.