This is my version based on my experiences living with depression since, I believe, I was a very young child. Mother took me to doctors who couldn't figure out what was wrong with me. I was always tired, missed lots of school, just not quite a spry kid. I was called lazy.
Anxiety. A very bad emotional and physical feeling that all at once everybody in the world hates me, and wishes me ill.
Dreads. A very bad sense that something horrific is going to happen to me ranging from from mild to severe.
Panic attack. Sheer terror in its most concentrated sense.
Anxiety attack. At its worse, a feeling like I am dieing.
The difference between a panic attack and anxiety attack for me is that with an anxiety attack, I feel like I am dieing; and with a panic attack, I know I am dieing or might be dead, but nobody told me.
PTSD is the salad made from all of the above.
I manage my symptoms based on my decades of experience. Mostly, I avoid being too active in situations that involve a lot of people, too many appointments in a short time frame, and, being careful of what I eat. When I drive, I rarely use the radio and never wear cologne because they might trigger an anxiety surge. Days, sometimes weeks before an event or appointment, I begin to prepare by having a bland diet, relaxing, and going over in my mind the event. It is an adjustment struggle knowing folks aren't going to bite me, but I know they have teeth.
If things are going smoothly, then I have less physical discomfort. When PTSD flares up out of nowhere, then I back track to the source. From there, I can managed the symptoms. In the beginning, I had no idea why I would have episodes of screaming and/or crying. Nobody I knew, including a therapist I saw back then (1980s), knew what was going on.
My life fell apart and landed in a worse place than the one I left. Decades later, I know more now than I did before is a great healing support.
There is a lot of good information out there about managing mental health issues. Read, research, and know your rights.