Whenever I used to have anxiety attacks, I knew it was there. I often knew why I was being anxious.

But recently, I feel like I'm getting silent anxiety attacks. The neighborhood I live in currently have become not quite peaceful and the idea of that started to affect me gradually. In the past, I could live without any worries. 

When I feel I was having anxiety, I knew why I was having it. But this time, I started to get low grade fever like body temps for a couple of months. The doctor said it's fine but it comes and goes inconsistently. I noticed the physical condition wasn't there when I wasn't feeling like I was in danger. But those were fleeting. The body temp gets raised nonetheless when I feel I'm not safe at home. I suspect the key to it is anxiety.

However, this situation feels like I cannot control it. In the past, I could put an end to an anxiety attack because I knew the root of it. But now I don't know if it is anxiety? If it is, is it happening in my unconscious mind? What do I need to do?