How can I deal with sudden anxiety attacks?

I had a panic attack once where all of a sudden I did not know where I was ,at work, I looked around and felt lost and did not understand why I was here for 5 minutes before everything started to make sense. But my last panic attack I had I told my co worker that I felt weird that the cops were coming to arrest me I did nothing but all anxious.2 hrs later the cops showed up at my work place looking for me because someone reported that I was suicidal.that was weird to happen and very embarrassing to happen at my work place.