Is it normal to have trouble remembering something you just did?
Generally, if you are unsure whether it's normal to have difficulty recalling something you just did, the situation should be analyzed based on specific circumstances. If discomfort occurs, it is recommended to seek medical attention promptly. The detailed analysis is as follows:

If this condition only occasionally occurs due to busyness, fatigue, or distraction, without other discomforts, and symptoms quickly resolve after rest without affecting work, study, or daily social interactions, medical care is not necessary. This is a normal phenomenon caused by temporary insufficient allocation of brain attention, which can be improved by adjusting sleep schedules and reducing stress.
However, if the condition occurs frequently—multiple times per week and persisting for more than 1–2 months—or is accompanied by noticeable memory decline, slowed reaction, dizziness, headaches, low mood, or sleep disturbances, and especially if it affects work performance, social abilities, or daily self-care, medical evaluation is required. Such cases may be related to cognitive dysfunction, neurological issues, or psychological factors, and professional assessments are needed to determine the underlying cause.
Maintain a regular daily routine, avoid staying up late and overusing your brain, and ensure your mind gets adequate rest. Include nutrient-rich foods such as nuts and deep-sea fish in your diet to support brain health. Engage moderately in activities like walking or meditation to relieve mental tension and reduce anxiety-related impacts on attention. If symptoms worsen, pay close attention and seek professional help promptly.