How does anxiety cause panic attacks ?

[spykerom]

It is normal thing to worry about something a little bit and it is a normal thing, but having a intense fear of something danger or restlessness cause a major anxiety issue.Anxiety leads to depression and also to panic attacks.
More people often say sometimes a normal person also have a panic attack, My question is that

How does a little anxiety cause a Panic attack even if the person is not aware of the symptoms ?

[Member11]

It is normal thing to worry about something a little bit and it is a normal thing, but having a intense fear of something danger or restlessness cause a major anxiety issue.Anxiety leads to depression and also to panic attacks.
More people often say sometimes a normal person also have a panic attack, My question is that

How does a little anxiety cause a Panic attack even if the person is not aware of the symptoms ?

Having anxiety or having a panic attack is normal. Everyone has had it, for example that nervous feeling you get just before going into a job interview or meeting someone for a first date. It becomes an issue when it stops you from doing things in your life you would otherwise do, for example socialising. When it does it is best to seek help on managing it.