I recently read neurologist David Buchholz's book, Heal Your Headache, which posits that all headaches (except those caused by a sinus infection, brain tumours, etc.) are basically the same - migraine, sinus, tension, etc. His suggested treatment is to remove 'triggers' and that includes going on a diet that's low in tyramine, among other things. I started the diet three weeks ago and, amazing! My chronic, almost-daily, pole-axing "sinusitis" headaches disappeared, except for the odd one that turned up when I experimented (rather early!) with reintroducing certain foods. I'm writing this with a cracking headache and one eye closed for doing exactly that so please don't ask me to explain his protocol - just google on 'low tyramine diet' and you'll find most of the basic info. But! I've also been feeling pretty ill - that fluey ache that we all know, and exhaustion. I don't know if this is coincidence, or if this is what's left when you remove the headache from a migraine but your body hasn't yet fully benefitted from the diet, or if it's some sort of withdrawal (I gave up caffeine years ago so it's not caffeine withdrawal), or what. Buchholz recommends that you give the diet two months as a fair test. This surprises me because I would have thought that most stuff would have been out of your body fairly quickly. I'm aware that there are criticisms of his logic and his evidence. But even though I may be unnecessarily excluding certain foods, following this diet wholesale is working for my headaches. I just want to know why I feel so ill and if it's to do with the diet, how long it could continue. So, has anyone tried this diet? Did you feel ill? If so, how long did it take to wear off? Are you aware of any explanation? Thanks!