I had all of those symptoms as a teenager in the bucketload.
My anxiety levels are lower now and I don't have 1, 2 any more, I have 3,4 and 5 and are milder than they used to be.
I didn't trust the doctors and various therapists/counsellors I saw so always laid back on telling them everything. I always got told that I have 'mild' anxiety and that I'd grow out of it, get good grades at school, get away from my family into a more supportive environment and things will be good. Had a bit of an epiphany more recently when I finally had a doctor tell me I have 'moderate' anxiety as of now. Woah. If that's moderate, what the heck did I have before?
I'd say it's severe anxiety, but what do I know?