Male Baldness Info

Will my hair ever grow back? I am 24/male. There is no baldness problem in my family. Lately (since the past 8 months), I have been under tremendous stress (physically as well as in the form of mental tension). There was tremendous hairfall during this period. There are no bald spots on my scalp except near the upper corners of my forehead.Also there are some spots on scalp where the hair density is very low.
I am afraid that I might go bald. Is there anything that I can try to ensure that I grow back hair (if possible, faster)?
Thanks very much for your suggestions.

i am 1 of three brothers what are my chances through punnet square or whatever they do to determine the likelihood
i know that baldness is dominant in males and woman have the recessive gene or whatever talked about it briefly in biology class
and if i would go bald about what age would it start