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The headache you are describing which is so severe and there is intolerance of noise can be Migraine
;which is a tension induced headache.Since all your investigations are normal it should be a tension induced headache and it is seen in such patients there is intolerance of noise;light;aversion to talk etc.Please see if you have been under physical or mental stress
recently which has triggered your headache.Try taking pain killer and if that does not help and you feel you are stressed please consult a psychologist
and treatment.If there is no element of stress and still headache is on then you can consult a Neurophysician.