Re: low ferritin hair loss?
You definitely need to raise your ferritin, but i can understand your stress over losing hair each time you try taking iron supplements. I've not heard about that occuring before so i can't shed any light on that.
Low ferritin is normally a symptom of another illness. Have you had a full hormone evaluation as well a thyroid testing done? Thyroid hormones, even if just a little out, can cause all kinds of issues. Having high levels of testosterone and also a cortisol and DHEA-S imbalance can cause hair loss.
You should get a full hormone checkup, full thyroid checkup and if your doctor could possibly check your adrenals to see how much cortisol they are producing and also your DHEA-S. All of these are important to see what's going on with your cycles, thyroid, adrenals. Whatever is causing it will fix itself once the problem is addressed, or ought to anyway.
If you have seen a doctor, it sound like he/she is missing something as you have already posted about the issue with your cycles and you also have the hair shedding issue. That is what occured to me, the cycles and the shedding hair, then doctors kept telling me i was fine. It took 9 years for me to finally find out that it was my thyroid and adrenal function after all.
With my cycles, to help speed things along, i found myself a naturopath who has helped beyong belief. She's got my cycles normal again and i just take a herbal mix daily though, but once my thyroid doctor has everything in order i shouldn't have to take the herbs. The only other option was seeing a traditional doctor who would have offered me birth control or a hysterectomy. Neither was an option and i find the naturopathic herbs to be the best choice while i'm working on my other issues.
So i'd say it sounds hormonal and thyroid related, but then again, the thyroid is to do with hormones too.