Sharing your feelings: Feeling Sad or Down

💬 [ない] means "not," so [名詞 + がない] is a very common pattern for "there isn't / I don't have ...": [時間がない] "I don't have time," [お金がない] "I don't have money."

💬 [元気] often means not just physical health but energy or emotional pep. So [元気がない] is a natural way to say someone seems down, low-energy, or not like themselves.

💬 [ちょっと] often means "a little," but in real conversation it also softens what you say. For example, [ちょっと疲れた] sounds gentler than just saying "I'm tired."

💬 [なの？] turns a plain statement into a casual "is it?" or "really?" question, especially after nouns and [い]-adjectives in conversation. Compare [そうなの？] "Really?" and [元気ないの？] "Are you feeling down?"

🇯🇵 This is casual and warm, used with friends, family, or someone close. In more polite situations, people would avoid this plain style and use something softer like [そうなんですか？]

💬 [そう] literally means "that way / so," so [そうなの？] is more like "Oh, is that how it is?" than a direct "really?" You can reuse it after hearing new information.

💬 This comes from [した], the past of [する] "do," but in [どうしたの？] it means "what happened?" rather than "what did you do?" This whole pattern is very common for checking if something is wrong.