Hi
Although difficult to say exactly without an examination, yours seems to be a case of migraine headaches.
Migraine headache is often described as an intense pulsing or throbbing pain in one area of the head. It is often accompanied by extreme sensitivity to light and sound, nausea, and vomiting. Migraine is more common in women than in men.
Sometimes the onset of a migraine attack can be predicted because it is preceded by an "aura", visual disturbances that appear as flashing lights, zig-zag lines or a temporary loss of vision. The usual triggers are a lack of food or sleep, exposure to light or hormonal irregularities (only in women), anxiety or stress.
It was earlier believed that migraines were linked to the dilation and constriction of blood vessels in the head. Recent investigations show that migraine is caused by inherited abnormalities in genes.
Treatment is there for both the prevention as well as relief of an attack. A class of drugs called triptans relieves migraine pain. Hormone therapy may help some women whose migraines seem to be linked to their menstrual cycle. Stress management strategies, such as exercise, relaxation, and biofeedback may also reduce the occurrence and severity of migraine attacks.
You should consult a doctor for proper diagnosis. Various tests such as blood tests, CT scan, MRI or lumbar puncture are usually necessary to establish a diagnosis of headaches.
Take care!
It sounds like a classic migraine. Have you tried any Motrin or IB, or another type of OTC pain medication?