Do we all cycle together now? 
I'm on my period now too....the cramps suck for 2 days or so, and I have couple of nights of fitful sleep, a couple days of headaches, but thankfully, it's not nearly as bad as what some of you go through, you poor things! 
Miranda, I'm 47 and getting more than usual scalp hair loss lately (past 3 months) too. I'm not on any medications/hormones. Didn't even think to mention it to my dr. or dermatologist, both of whom I saw in the last 2 months for regular checkups. I'm going to look up the Nioxin. I was just doing a web search on female hair loss this morning, so your information is very timely! Mine isn't noticeable to anyone else (yet anyway), but I sure get a lot in the shower and bathroom sink and floor. A lot more than I used to, so something is definitely off. My mom has thin hair, and so did my grandmothers, so it may just run in the family as we age. Sigh...I had such thick hair when I was younger!
Emily
2011 Jamis Dakar XC "Toto" - Selle Italia Ldy Gel Flow
2007 Trek Pilot 5.0 WSD "Gloria" - Selle Italia Diva Gel Flow
2004 Bike Friday Petite Pocket Crusoe - Selle Italia Diva Gel Flow