am not a doc yet but this is much i know.
is the hair loss localized or affects a whole area of your scalp(general hair loss)
if its localized then it might be caused by either twisting/pulling of hair esp for people that braid alot/hold their rollers tight.
it might be a fugal infection ie tinea capitis
it might be alopecia areata ie patches of baldness and this usually grows back later.
if it is general hair loss.it might be as a result of fever,sudden weight loss,stress and even sometimes child birth.
i am yet to learn/be taught that fibroid causes hair loss.

so see a specialist to determine what you have and how to treat it.i know that hair transplant is a corrective measure
its expensive and there are drugs that help eg Rogaine/minoxidil.
ask a specialist please.dryness during sex might be because you are tensed up,no/insufficient foreplay and other things.