not valid

i've been diagnosed with severe anxiety for as long as i can remember however most of the time my anxiety doesn't manifest in panic attacks, i've only had a couple of times where what i had met the criteria for a true panic attack, many times though ive had episodes where my abs clench, my legs get shaky and im practically holding my breath often with no external effect. i dont even think this counts as an anxiety/panic attack it's prolly just being anxious. anyways though even with the diagnosis and the symptoms i still feel as if my illness isn't valid because it rarely comes out in panic attacks