physio, physio exercises and massive headache

Hi ya
I am not overly bothered by this, "yet" and have been assured that i will likely get a few, but the painkillers aren't working and my usually off the wall approaches to headaches in the past are just not working with this one, started lightly after physio yesterday and has built up to where it is now, it's coming from the neck, where the Physio was applied, the muscles in the neck are not tense but quite tender, while i could do the exercises the physio recommends, they're a miracle but i can't imagine sitting here all night, in such a position, any one with any fixes until i can look into it, its just after midnight here so its up to those who use the natural approach
cheers