Of course you can share genes with an Aunt, but you can't INHERIT them from her. And as my Doc told me, as I said earlier, paternal Aunts are as irrelevant as complete strangers as regards inheriting fertility issues. If your maternal Aunt had issues, that could be something she's got off your gran which could be passed onto you, but it doesn't work the same from the male line. I'm very like my paternal Aunt, with v similar colouring (hopefully not her weight; she is a size 22), tastes, interests, abilities, habits, quirks, etc., and a few other physical things BUT her infertility can't have any say on mine.
I think you've got a bit fixated that cos your Aunt couldn't get pg then that's what's happening to you cos of genetics, but I will keep assuring you: it is scientifically impossible! Fertility ishoos are passed down the same sex family line - male to male, female to female. Sex genes are different from things like Male Pattern Baldness or Cystic Fibrosis or summat.
And PS Aries, Medee is right, you can't inherit scoliosis from your Aunt. NO-ONE CAN INHERIT ANY GENES FROM AN AUNT OR UNCLE! Only from your parents and grandparents. You can share genes, but if you do, you got them from the Grandparents or further back. Aunts and Uncles are completely separate branches of the family tree in terms of heredity.
Don't make me get Ben Goldsmith and Professor Robert Winston on here to shoutily explain it to you all!
Am now going to lie down in a darkened room.