What to say to my lovely mum? What am I?

Hi, I'm Kay and I'm confused as hell.
I'm a female makeup artist, who thinks I'm like 70/30 female to male. Maybe less male, maybe more. Maybe labels like Female and Male don't matter and are a contrived notion. But I love being female, I love my curves and my girls and giggling with them about men and sex...but I also feel there's a healthy side order of male living in here too. Maybe everyone has that but I'm not so I've yet to find a label I think fits my situation, and I guess that's why I'm here, to learn more from you beautiful enlightened people about gender and what I am.
I've been openly bisexual since 18 with my friends, haven't told my family because I've never had to, it's none of their business and they wouldn't care. If and when I fall in love with a woman I'll tell them. My mum brought me up to believe love is love so I know it wouldn't be an issue. "Mum I occasionally like to sleep with women" isn't really a conversation I've felt the need to have though. Although it's probably about time.

Just needed to say all this to someone really. I want to talk to my mum about it but I just wish I had a clear thing I could say mum I'm this ....
She'd be able to understand that. She's a liberal hippy at heart. I guess I'm worried that explaining it the way I just have to you all would make it sound a bit wishy washy airy fairy, when actually it's been on my mind a lot recently. It's something I need her to understand. But how can she when I don't?

I feel a bit silly asking about this really, when there are so many out there facing real struggles and facing danger. It kind of feels like a stupid problem, but it's me ya know? Who I feel I am inside. I'm close with my mum. I tell her most things. I want her to know me. The I'm bisexual part will be so much easier because it's a clear label she gets. She supports the lgbt community.
I'm rambling. Sorry.

You're all strong, beautiful and awesome sauce.
I'd like to buy you all a pint x