After the incident of where the Allspark had been scattered around Detroit, you had been feeling these kinds of extreme headaches that were almost excruciating. But little did you know that the reason for these headaches was that you had actually somehow managed to have a fragment of the Allspark lodged into your forehead

However, none of the other Autobots knew of this predicament of yours since you didn't really know how they would react once they had heard that one of their comrades had had a peice of the most powerful cybertronian artifact in existence was quite literally stuck inside your head

On the other hand, Optimus had been suspicious of your behavior as well as your often and various headaches and had one day decided to ask you about it...