I do not take letrozole never have . My doctor cringes when I come in, because I will tell him first off what I will not take and we have to find alternatives, and so far I have been lucky he has worked with me, if he cannot help me then he will tell me, if meds are prescribed he states they are mainly for pain and I reply that I don't want to mask the symptoms I want to cure them and this has taken me on a long road of inquiry plus trial and error, my issue I believe arises from compression in my spine, just got some results today and it is looking promising I have gotten somewhat better and he is agreeable that it is sad that it is going to hurt more before it gets better, but says that is a good thing as it shows the nerve are waking up and not causing the problems. I do keep laughing and saying I am going to cure myself before the doctors do really, GPs a lot of times do not realize what all the issues are I find. For my issues the chiropractor--decompression and the reflexology are working for me.