Many people develop stomach aches or headaches when they feel anxious. This is because blood flows from the stomach and head to the muscles and heart in preparation of facing a threat.
Your heart rate naturally speeds up when you are feeling tense or anxious about something. A faster heartbeat prepares you to run fast or fight any scary threat
When you are worrying too much it may be difficult to stop thinking and that makes it hard to relax and fall asleep.
When you feel anxious, your muscles typically tense up, as if they are waiting for something bad to happen. This tension can make you feel restless or “on edge”
Someone with anxiety might worry about many different things such as school marks, friends, things they have said and done, making mistakes or their future.
Because of their worries about what they say or do, someone with anxiety might find it harder to talk with people they do not know.
If a person has frequent anxious thoughts about many areas of their life, it is understandable that they may find it hard to concentrate on individual tasks
Someone with an anxiety disorder may avoid something that would usually be enjoyable because they worry that it is too hard, they will make a mistake or that others might laugh at them.