Dear Doreen,

Thanks for all the information. I doubt if I am sensitive to arachidonic acid as I managed to get my blood pressure down before when I got as low as 77 kilos and I don't have any of the other symtoms you mention.

I'll try taking potassium suppliments first as I am not taking any blood pressure or heart medications, and I notice that my daily vitamin and mineral supplimant does not contain potassium!

If this, and all the other measures I'm taking do not work I'll try going without red meat and egg yolks for a three weeks or two and see what happens (Boo hoo - I love eggs). (At least I'll get enough fish!)

Many thanks again,
Robert