I'd say anxiety is a symptom of mental health problem like having a cough -- the underlying cause can be very different in people.
Since I was little I suffered from terrible schizotypal anxiety which somehow cleared up completely in middle age [1] I never got along with a person I knew who had panic disorder despite trying hard: some if it is that my anxiety makes me move towards dangerous things (I've been seen going into a building when the fire alarm was on) and his anxiety makes him want to banish every possible source of anxiety from his life but the more he does that the more fragile it gets.
[1] I don't know if it was Gabapentin, or a few years of attempting business developer, or meeting my "evil twin" or discovering my schizotypy or just getting old enough that I don't give a fuck.
Since I was little I suffered from terrible schizotypal anxiety which somehow cleared up completely in middle age [1] I never got along with a person I knew who had panic disorder despite trying hard: some if it is that my anxiety makes me move towards dangerous things (I've been seen going into a building when the fire alarm was on) and his anxiety makes him want to banish every possible source of anxiety from his life but the more he does that the more fragile it gets.
[1] I don't know if it was Gabapentin, or a few years of attempting business developer, or meeting my "evil twin" or discovering my schizotypy or just getting old enough that I don't give a fuck.