mac, im gonna answer the questions publically so everyone can benefit:
did u find that ur hair always was and is pretty soft in texture? YES
do u shed @ all...in the shower? only a couple hairs if any
do ur hairs pluck out easily? no
how is ur family history with regards to male pattern baldness? dad is nw5 at 50, so was his dad. mom's brother and her father both have great heads of hair.
hows ur facial and body hair growth? very little facial hair and body hair for being 22.
do u got gyno? no
as for your hope of finding a solution or some kinda genetic basis, give it up. diffuse patterned alopecia works the same as male pattern baldness, it just takes a different route to get there. the same stuff treats one that treats the other. without meds, you would end up NW5-NW6, just taking a different route to get there than a receder. instead of your hairline receding and your crown starting to and them meeting in the middle, you would just gradually see your hair getting thinner all over on top and the crown, then the front would start to thin as well, as it all disappears.