How do you say "I feel sick" in Japanese?

Quick use

Use きもちがわるいです (kimochi ga warui desu) at the hospital or clinic when you feel sick, nauseous, or generally unwell.

Chunk or pattern

• This works well as one ready-to-use symptom line.
• Learn the whole line first instead of rebuilding it word by word.
• After this, you can add details such as when it started or whether you threw up.

Core words

• きもち: feeling.
• わるい: bad.

Helper words and endings

• が: marks the feeling or condition you are describing.
• です: polite sentence ending.

Practical note

This is broad, so it is useful when you do not know the exact medical word yet. It often points toward nausea or feeling unwell.