Personality disorders encompass a variety of mental health issues which are sometimes difficult to diagnose and can be missed.
It is very difficult to define this condition as symptoms can be very subtle and variable. There is often overlap between symptoms of other conditions such as depression, anxiety, bipolar disorders, post traumatic stress disorder, eating disorders and mania to name a few.
If a Personality Disorder is suspected, patient needs to be assessed by a Psychiatrist who takes thorough history and may complete psychometric analysis such as questionnaires before making diagnosis of this condition.
Features may include impulsive behaviour, unpredictability, inappropriate sudden outbursts of anger, feeling of loneliness, confused identity and goals, instability of interpersonal relationships etc.
This list is not exhaustive and as stated above there is sometimes an overlap with other mental health condition. If in doubt then please speak to your doctor.
There are a number of reasons why people can go on to have personality disorders. This could be compounded by previous life experience, family history of mental health problems and co-existence of other mental health problems as listed above.
Once a Psychiatrist diagnoses this condition, the treatment may involved either psychotherapy such as cognitive behavioural therapy (CBT), counselling or other forms as deemed appropriate by the specialist.
They might also prescribe medications for treatment of other psychiatric comorbidities such as depression, anxiety etc.
Please do not self diagnose this condition yourself and seek expert opinion or speak to your doctor if you have any concerns.