A worry is a feeling of unease, fear or nervousness when you start to think about unpleasant things. It is a type of thinking, often about something that might happen in the future and it leaves you feeling frightened, nervous or anxious. Some people call worries, anxiety or stress. Everybody experiences worries, however if you are starting to feel worried more often or if you can't seem to stop thinking about your worry and it is leaving you feeling upset, you may be experiencing anxiety.
The distress from anxiety often interferes with a person’s ability to lead a normal life.