Anxiety is a feeling of unease, such as worry or fear, that can be mild or severe.
Feeling anxious is sometimes perfectly normal. However, people with generalised anxiety disorder (GAD) find it hard to control their worries. Their feelings of anxiety are more constant and often affect their daily life.
There are several conditions for which anxiety is the main symptom. Panic disorder, phobias and post-traumatic stress disorder can all cause severe anxiety.
If you start feeling like you can't cope, life is becoming very difficult or your life isn't worth living, get help. These are signs that you need to talk to someone.
Either contact your GP or call NHS Direct (0845 4647). You can also contact helplines such as PTSD Resolution (0845 021 7873) for confidential, non-judgemental emotional support.
If you've had depression and/or anxiety in the past, even if they weren't formally diagnosed, seek help immediately. You're more likely to have an episode of depression if you've had one before.