I have been taking magnesium tablets for about three months now, they are not helping. The only thing that I find does help is to lie on my stomach! Weird! When it gets really bad nothing helps. I didn't realise how many people suffer with this. I went into a big boots store to see if they could suggest anything, and they had never hard of it! I then went into Holland and Barrett, where two fantastic ladies knew exactly what I was talking about, they didn't make me feel like a freak. too much caffeine makes it worse. I guess I have just learned to live with it.