So, for ages I thought I had either a chronic sinus infection or some other sinus issue that caused headaches and nausea. (No light sensitivity, though)
Nasal rinse, anti-histamines and Sudafed (only sudafed, other decongestants had no effect!) seemed to be the only remedy, but often not enough.
Got a CT-scan, radiologist said he could see polyps, but when I then got to see the ENT, he told me that the radiologist was seeing stuff that wasn't there and that my nose and sinus' (sinii?) were in excellent condition and that in his opinion (not being a neurologist), I was suffering from migraines. Back to my GP, we had a chat about indicators and he gave me a test prescription (some wafers, name escapes me). (Edit: It's Rizatriptan)
I stopped on the 'sinus' treatment, added supplements (magnesium, B-complex (including B2) and Omega-3) and if anything felt better. It seemed like just the knowledge on it's own made me feel better.
I still had to resort to the magic wafers 3 times in the last 2 weeks, but they have been amazing. Takes a couple of hours to fully kick in, but then I'm completely clear.
Sunday I had the worst one, (after buying cinema tickets, of course), but took a wafer, relaxed for 1 hour and I easily sat through the 3 hours of the Hobbit 2.
Workload has been heavy and I have barely been working out, but I hope that a soon-to-come reduction in workload, combined with the supplements , exercise and a back-up of magic wafers will bring this under control.
I still suspect that it's allergy related, as the main indicator is irritated nose, so I'll ask for an allergy test when I go to get my prescription renewed.