Have you ever felt a panic attack just from reading a message from someone?

I always did, suffocated and shivered. It was always both excited and frightened at the same time whenever I waited for his messages. Excited because I expected to talk to him about happy stuffs, frightened because sometimes he just did and said something really shockingly triggering. It felt like waiting a news from a solider in the World War everyday. I couldn't deal with what would be told at once but I still wanted to hear them for better knowing and understanding.