Questions & Answers about Hoy me siento bien, aunque estoy cansado.
Spanish has two related verbs:
- sentir = to feel (something), to sense, to regret
- sentirse (reflexive) = to feel (a certain way, a state or condition)
- Me siento bien. = I feel well.
- Me siento triste. = I feel sad.
In your sentence, you’re describing how you feel (your state), not what you feel as an object. That’s why you must use the reflexive form me siento, not plain siento.
Both can translate as “I feel good / I’m fine”, but there’s a nuance:
- Me siento bien focuses more on your internal feeling at that moment (physically or emotionally).
- Estoy bien is more general: “I’m fine / I’m OK”, a broader state, not necessarily emphasizing the sensation.
In many everyday situations you can use either and be understood, but me siento bien explicitly highlights the subjective feeling.