ROTFL over Rae's "attack it with a Sharpie"!!!
My mum had me yank out hers and her mum's (my grandma was NOT fond of this, it turned out; she'd just humour me when I was little rather than interfere with mum's parenting!). Me, I'm too chicken to tug at myself. I've lived with mine since I was 14 or so --- and I rather like that most of them make a little streak along one side of my head
Welcome to the club, Lyn!
I'd check on my vitamins and micronutrients --- but you already know about that and the stress! Can you get hair mascara in your natural colour? It's surely too much to dye for one or two hairs.