Hi again
Thank you all so much for the information and support. For the first time in the 15 years or so since the beast first came calling, I'm in touch with people who know what they're talking about.
Sorry I didn't really introduce myself in the initial post (typical British reserve - we're famous for it!). I was "fortunate" enough to get diagnosed immediately by the only useful GP I've seen (he suffered from them himself - how's that for serendipity?), but since then I fell in love, got married and moved away, and the only responses from GPs I've had since then have ranged from blind ignorance to outright hostility. So, basically, I've given up on doctors and tried to "tough" each episode out. I realise that in the CH spectrum, I'm at the lucky end (though when I'm whimpering, sobbing and mopping the tears and sweat with a towel at 3am, I don't feel too lucky). So, I'm episodic, around every 18 months to two years, nearly all the attacks come at night - roughly every two-three hours, with each attack lasting around 40 minutes from being dragged out of my sleep to feeling well enough to go back to bed.
Not sure what the situation is with oxygen on your side of the pond, but as far as I'm aware, over here you can only get it on prescription - which means doctors, and to be honest, when I'm in an episode, I just haven't got the energy to fight the system.
So, guys, I shall definitely have a go at the D3 and Omega-3, and see what those innocent looking little seeds can do. Thanks again for your friendship and support, and I'll let you know how it goes.
Zak :-]