I’m new to all of this and I feel like I’ve never really had an issue with anxiety until about two weeks ago. I will be just chilling in a non stressful environment and suddenly feel intense emotions of anxiety. Because it started out of nowhere and I couldn’t think of a cause, I was worried I was developing a mental illness. I met with a therapist who told me it seemed like normal anxiety and that I seem okay otherwise.  One thing that seems strange to me is these episodes just come out of nowhere and leave as quickly as they come. After they are over I’m like “that was weird idk why I was feeling that way”  and feel normal again. Has anyone experienced anything similar?