One of the most common questions people have as they get older is whether what they are experiencing is normal, or whether it is a sign that something needs attention. The uncertainty itself can be stressful.
Here is a practical framework for thinking about it.
Normal changes with age
It takes a little longer to recall names or words, but they come back eventually. You tire more easily after physical exertion. Your sleep is lighter than it used to be. Joints feel stiffer in the morning. Your eyesight and hearing have changed somewhat. Healing from minor injuries takes longer.
These things are common, gradual and do not significantly interfere with your ability to live your daily life independently.
Changes worth discussing with a doctor
Memory problems that other people around you have noticed, or that are affecting your ability to manage finances, medications or appointments. Sudden changes in vision, speech or balance. Chest pain or shortness of breath with minimal exertion. Unexplained weight loss. Pain that is new, persistent or worsening. Changes in bowel or bladder habits that last more than a few weeks. Mood changes that have persisted for more than two weeks and are affecting your daily functioning.
The general rule is: if something has changed noticeably, has persisted for more than a few weeks and is affecting your daily life, it is worth a conversation with your GP. You do not need to have a specific diagnosis in mind. That is what your doctor is there to help you figure out.
A note on waiting
Many people delay seeking help because they do not want to waste anyone's time, or because they worry about what they might find out. Neither of these is a good reason to wait. Most things that are caught early are more manageable than things caught late. And if it turns out to be nothing to worry about, that is also worth knowing.
Your body has been giving you information for decades. It is worth continuing to listen to it.