1Migraine: a type of headache that is often severe and may be one-sided, frequently accompanied by nausea and sensitivity to light or sound.
今日は朝から偏頭痛がひどくて仕事にならない。
I've had a terrible migraine since this morning and can't work.
光が眩しいと偏頭痛が悪化することがある。
Bright light can sometimes worsen a migraine.
医者に処方された薬を飲んだら、偏頭痛が和らいだ。
After taking the medication prescribed by the doctor, the migraine eased.