I've always been an anxious person, usually it was related to social anxiety. Over the past year I had actually been making a lot of progress within myself and had overcome a lot of that anxiety. Until last Friday, when I had my first real panic attack. It came completely out of nowhere around midnight, and I really can't think of a cause. I had another the next day during the afternoon. Since then I have been having constant anxiety and this extremely intense feeling of butterflies in my chest that I just can't shake. I've also been struggling a lot with derealisation, nothing really feels real to me anymore. Even when I'm mentally positive, I just can't stop this feeling of anxiety in my chest. I'm wondering if anyone else had an experience like this and if it passed or this feeling of intense anxiety continued, if so how do I manage it? Breathing exercises help a bit but it's only a temporary solution. Appreciate any advice anyone could give.