Since when is
gyno classified as a tumor?
You're using
letrozole to treat
gyno?
Gynecomastia has been reported in some cases of
HGH use. If you were on
HGH during HRT, it's difficult to know exactly what caused the
gyno.
Since you appear to be unfamiliar with most of these products, their effects and mechanisms of action, your best course of action is to go under a Dr's care. It doesn't appear self medicating is working in your case.
Best regards,
MaxRep