Our mental health can change over time. This can be because of life events which cause distress or unhappiness, or it can happen with no apparent cause. These changes can lead to mental health difficulties or illness.
Mental health difficulties are very common and affect one in four of us at some point in our lives. In spite of this people experiencing them may feel afraid that no one will understand them, that the problem is 'all in their head', and that they won't be taken seriously, or that what they are experiencing is unusual and out of the ordinary. Quite the reverse is true - lots of people around us are experiencing similar problems, and mental health difficulties are nothing to be ashamed of.