Spanish Phrase
No me siento muy bien.
Meaning
This phrase is the standard way to express that you are feeling physically unwell or emotionally off. It uses the reflexive verb 'sentirse' to describe an internal state or condition rather than an external sensation.
When to use
Use this phrase when you need to tell someone you are sick, exhausted, or simply not feeling like yourself. It is appropriate for both casual conversations with friends and formal situations like calling out of work.
✦Grammar Breakdown
Nomesientomuybien
Reflexive Pronoun (me)
The 'me' indicates that the verb 'sentirse' is reflexive, meaning the action of feeling is directed back at the speaker.
Stem-changing Verb
The verb 'sentir' changes its stem from 'e' to 'ie' in the present tense for the 'yo' form, resulting in 'siento'.
🗨In Conversation
¿Vienes a la fiesta hoy?
Are you coming to the party today?
No, lo siento, no me siento muy bien.
No, I'm sorry, I don't feel very well.
✕Common Mistakes
No siento muy bien.
You must use the reflexive pronoun 'me' because 'sentirse' requires it when talking about feelings.
No me siento muy bueno.
Use the adverb 'bien' to describe the state of feeling; 'bueno' is an adjective used for characteristics.
↔Alternatives
Me siento mal.
I feel bad.
Estoy indispuesto.
I am indisposed/unwell.
Cultural Tip
While 'No me siento muy bien' is a common way to decline plans, Spanish speakers often follow it up with a specific symptom to show sincerity. In some regions, saying 'Me encuentro mal' is a more formal alternative used in medical contexts.

