Japan Travel Fixes
What Japanese phrase can I use to say I feel unwell?
"Guai ga warui desu" (I feel unwell) covers it, and pointing to where it hurts usually gets the rest across. For anything serious, don't hesitate — call 119 for an ambulance.
You don't need to explain your symptoms in detail — conveying that you're unwell and pointing to where it hurts is usually enough for hospital or pharmacy staff to take it from there.
For the fuller picture on how Japan's healthcare system and costs work for visitors, see the separate article on feeling unwell during your trip.
Telling someone you feel unwell
具合が悪いです。ここが痛いです。
Guai ga warui desu. Koko ga itai desu.
I feel unwell. It hurts here. (point to the location)