Too often we get the word anxiety and the disease anxiety mixed up. Crowds, or even basketball may not even trigger it. An anxiety attack can come from something that might seem very small or insignificant. It's easy to think that is what it is because most of us get nervous in front of large crowds. Severe Anxiety is something people have to figure out what type of treatment works for them in order to be able to overcome it. Then something may change, and you may have to figure it out all again.