No morning erections on Finasteride. Should I be concerned?

You may have Post-finasteride syndrome, occurs in men who’ve taken finasteride to treat hair loss by a chance of %4-5. That may causes not hyperandrogenicity but some other symptoms include: loss of libido, erectile dysfunction, depression, suicidal i...

This is a very difficult diagnosis to make and when it is made, the reversal is difficult. Look for causes such as stress and try to treat the stress

Yes, eating disorders can cause hair loss.  Hair growth requires nutrician from proteins and vitamins. If someone is deficient in their caloric intake, then this can cause hair loss. This is most likely reversible with resuming a healthy, balanced diet. 

First one needs to get the right diagnosis, then a decision can be made regarding treatment.  Both medications have been used to treat localized hair loss.  You need to be seen and evaluated by a dermatologist.

Not everyone will grow out a full beard, this is an individual trait.   You can ask your father what his facial hair appearance was at age 18.  This will give you a better idea of what to expect.  At age 18, I would not offer a beard hair transplant.

AGA can certainly cause shedding but what you describe is more shedding than what is typically seen in AGA. In other words, if you do have AGA, it's likely there is something else going on as well. AGA is generally a slow process with shedding only slightly increased. AGA does not regrow on ...