My test is a bit low and I really feel it
how would you know? you're guessing you feel it
my libido is off, some days I'm horny all the time other days I'm not even interested in sex.. I feel sometimes tired and don't have a lot of vigor in life for no apperent reason.
Welcome to everyday, normal life. It's ups and downs. Shortage of sleep, lack of sunlight, diet, stress etc will affect energy levels and sex drive as wel as hormonal imbalances.
My fat distribution is female-like, I often don't feel "manly", and feel I don't gain as much muscle as I should.
I'm not trying to be an arsehole here, but you make a lot of inferences and try connect a lot of dots and expect additional test to be the clearcut answer.