Lisa your problem does sound like hormonal imbalance. I'm really feeling for you. I have three stubborn hairs on my chin which I pluck. I know if you pluck for years you can eventually thin them down because I did it with my eyebrows when I was a teen. I used to have brows that put would have put Brooke Shields to shame. So unless I get more I'll just continue to pluck. They are growing from scar tissue from a bike accident as a teen so I thought they were just mutated hair follicles or something;-)
There are tricks to the waxing to help with the not getting any hairs problems. Pulling against the growth pattern. (double ouch!) Putting down powder or creams to protect the skin. I even remember brushing my hairs so they stood more upright so that they were more imbedded in the wax. And here is the kicker, the hairs have to be pretty long to be grabbed. At least 1\4th an inch. For really thick healthy hairs it may need to be longer. And different brands are better than others at grabbing stubborn hair. I think I wound up settling on some type of wax tape system because it worked better. Warning!!! When you figure out how to grab them with the wax it will probably draw blood from each hair folicle. Hurts like hell and you will have to do it at least once a week for a few weeks till you get all the hairs. At that time you might actually be able to wait three weeks before needing to wax again. I've posted the waxing tips because you have to do something while you are cleaning up with the cleanses.
I know there are natural products to take for hormonal imbalance because my mom took some when she went through menopause but unfortunatly I have no clue which ones. Please post back once you have done all the cleanses and let us know how they work. Even if you aren't done till a year from now it will be helpful to lots of women I'm sure. I would imagine that the cleanses and detoxing your lifestyle will probably bring gradual thinning of the face hair and hopefully bring back your head hair.
Might try the borax shampoo that Dr. Hulda has in her book too. Just in case your head is absorbing toxins from the shampoos. I took sublingual vitamin B6 to help my hair grow back when I lost some of it from rapid weight loss. I found that when I remember to take it the hair grows back faster than when I don't. Didn't seem to affect body hair.