I notice, and it could be down to the isa-test, but im getting slight thinning of my hair (and oddly growing hair where ive never had it.
so, first point of call for a potentially thinning bloke in his early 30s?
You need to isolate the imbalances causing it could be multiple. Proper testing is needed.
I am not a medical Dr, please keep in mind that this answer is for information purposes only, and is not intended to diagnose, treat or replace sound medical advice from your physician or health care provider.