I tend to forget things at work. could something be wrong with my mental health?

More questions: Well there is a need to get more answers from you before getting to the bottom of the problem... Is this a new concern, has it gotten worse lately or do you remember ( no pun intended ) dealing with memory issues since you were little? Better to bring this up to your pcp or psychiatrist if you have one.

Too little info: A lot of things can cause forgetfullness. Stress, worry, anxiety, depression, multitasking, etc. But the only way to answer your question is for you to see a psychiatrist for an evaluation.