According to the American Migraine association, you should go see a doctor for the migraine. Headaches can be a sign of an allergy, but Aura's, light and sound sensitivity isn't common. OTOH, if you have metalic taste in your mouth, then that is a sign of an allergy. If it was an anaphylaxis reaction, I would suspect breathing problems. If you still have symptoms, I would definitely go in.

Same with me - to most allergists, I'm not allergic to peanuts, but am sensitive to peanuts. My old allergist (who retired about 10 years ago) said I could include peanuts on my allergy list because it is - as he called it an "limited tolerance acquired allergy". He also said that for me peanuts (and peanuts' cousin soy) are like 'atom bombs'.

This occurred several years ago and I don't remember a metallic taste, but I did have a severe headache, nausea, vomiting, sound sensitivity, and light sensitivity with what I called halos at the time. My Mom would have the same problems, but said she was having "gall bladder" issues - which continued even after she'd had her gall bladder removed. For Mom it seemed like it was, in part, her body's response to the relief of stress (not during stressful situations, but 2-3 days away from the stress).

I have had bad headache off an on light sensitive etc good questin