A tooth infection caused me to have a panic attack.

I believe it was the infection entering my bloodstream. I went to the hospital, all the staff insisted it was a panic attack, it started to subside after drinking 2 litres of water.

I left with antibiotics, it was the first time i've had one and not had once again since.

I think panic attacks have a cause, in my case an infection, in others, maybe root canal or infection elsewhere.