I am intolerant to nitrates,
side effects from just 5mg is nausea, dizziness to the point of falling over, shakes, chronic headaches. On top of this, the medication does nothing for
my angina. It is all very well a doctor saying you have to live with it, but at what cost. As you say, the headaches are bad and I have personally felt these, they are nasty. It feels
like all the nerves in your neck are being squeezed causing shooting pains in the head.