Does this sound like anxiety?

Hey,
So my whole life I’ve had anxiety but just like average never really thought about it had anxious moments here and there but functioning none the less, I’m now 20 male and in February my right lung collapsed which sent me to hospital for three days and ever since I’ve been out just haven’t been the same, I’ve been to the doctors multiple occasions, I went to the hospital once more in June when I thought my left lung was collapsing(it wasn’t) I’ve had multiple blood test only thing is my iron is low, been take supplements, but the worse symptom I get is feeling of light headedness at least that’s what I think it is my vision isn’t blurry, nor do i get dizzy but if i work myself up enough i feel like I could pass out never have though of course, have convinced myself I have POTS not sure if i do or not, as well as sleeping at night has become hard because my brain is just so full and noisy, and for some reason now never use to get this when i get anxious to an extreme degree and notice redness on my body i get a stress rash, which subsides over time but prior to my lung collapsing never had that as well as working out has become difficult as sometimes i feel weird in the head and get really itchy when my body heats up, I work at a retail store and for reason usually once per shift i get that lightheaded out of it feeling which subsides in about an hour after it comes on and it’s just so weird cause everything has happened since mg lung collapsed, saw a therapist for a bit which helped a bit, but when i get this light feeling in my head it’s the worst and I don’t usually feeel anxious when i get it, any ideas greatly appreciated.