Like many things, anxiety has been largely misunderstood due to a strange desire people have to stereotype human behavior.
Stress isn’t all just about freaking out and never leaving your home. Many people keep their feelings hidden because they fear being discovered by others.
These are things you can do to help.
1. Educate yourself.
Understand why it happens and what problems are behind it. You simply need to understand what it is before you can help. It’s important to be knowledgeable.