Well I tried another one today, and wow, big big headache. I persevered with the patch but even pain killers arent helping with the headaches. Strangely these patches are doing nothing for my angina, just giving me headaches. They are headaches which seem to be just at the base of the skull, right at the back. Throbbing and feeling like lots of nerves are being squeezed. Dont think I can handle this especially with no benefits.