I used to get anxiety and panic attacks sporatically around age 15-16 but then it went away (for the most part) so i never bothered getting diagnosed.
about a week ago i started feeling EXACTLY the same as you (23 now). ive been trying to explain how i felt to my increasingly frustrated boyfriend so your post is really helping. but ive also felt really nauseous and completely lost my appetite, do you feel the same? i seem to have to force myself to eat every day now and most of the time i feel like i cant swallow it anyway.