Attention deficit hyperactivity disorder (ADHD) can make it hard to concentrate and control your behaviour, and can make it feel like you have too much energy.
Anorexia nervosa is an eating disorder where you worry about your weight, want to lose weight and eat less and less food. It is a serious condition, but treatment is available.
Anxiety is a normal, human feeling of fear or panic. But it can become a problem when it starts to have a negative impact on your everyday life.
Autism - sometimes called autism spectrum disorder (ASD) - affects how you see the world and how you interact with other people. Find out the symptoms and where to get support.
Bipolar disorder can make your mood become extremely high or low, with episodes lasting for days or weeks on end. It is a serious condition, but help is available.
Borderline personality disorder (BPD), or emotionally unstable personality disorder (EUPD) as it's also known, can cause you to experience rapid changes in emotion, often triggered by your relationships.
Bulimia is an eating disorder where you get into a cycle of overeating then making yourself sick to try to control your weight.
We all feel low or down at times, but if your negative emotions last a long time or feel very severe, you may have depression. It often develops alongside anxiety.
Mania is a feeling of being very high with lots of energy and enthusiasm that can go on continuously for a long time. Hypomania is a milder form of mania.
Obsessive compulsive disorder (OCD) is an anxiety disorder where you experience distressing, repetitive thoughts and behaviours that you cannot control.
A phobia is an extreme fear of an object, person, animal, activity, place, feeling or situation. If you are struggling with a phobia, you are not alone.
When someone is experiencing psychosis, they might hear voices, or see or feel things that aren’t there. Find out more about psychosis and what support is available.
Post-traumatic stress disorder (PTSD) happens after you experience something extremely frightening, like violence, abuse, or a life-threatening situation.
People with schizophrenia might hear, see or believe things that are not true for other people. Find out more about schizophrenia and where to get support.