fainting
Lipotimia is a term used in Spanish medical contexts, which is directly equivalent to the English term 'syncope'. It refers to a sudden temporary loss of consciousness caused by a lack of blood flow to the brain, often characterized by a sense of dizziness, lightheadedness and fainting.
I'm feeling faint, I need to sit down.
This phrase is expressing a physical symptom of feeling faint or light-headed, known as 'lipotimia' in Spanish. The person needs to sit down to help alleviate this condition.
After running the marathon, I fainted.
This phrase describes a scenario in which someone has experienced fainting, or 'lipotimia', after performing an intense physical activity such as running a marathon.
I haven't eaten much today, I might faint.
This quote is illustrating a situation whereby someone has not eaten enough during the day and is warning that they might faint, indicating 'lipotimia' as a consequence.