That's good that your being proactive about it.
It's easy for us to be scared about bad things, and hair loss definitely sucks, because
we can see it in the mirror daily.
That said, don't give up. Even if it is something that might not be able to be fixed.
Haha I wouldn't exactly call possibly going back to an allergist 23 years after the onset of my hair loss being "proactive," but thanks.