Breakdown of Меня тошнит, откройте окно.
окно
window
я
I
открыть
to open
тошнить
to feel nauseous (меня тошнит — impersonal)
Questions & Answers about Меня тошнит, откройте окно.
Why do we use the accusative Меня instead of the dative Мне or nominative Я here?
Тошнить requires an impersonal construction where the person feeling sick is the direct object in the accusative case (меня). It literally translates to "it nauseates me." This is different from physical conditions using the dative case (like мне холодно) or the nominative (like я болею). In the past tense, the verb is always neuter singular: меня тошнило.
Why use the perfective imperative откройте rather than the imperfective открывайте?
You want a specific, immediate result: an open window right now. The perfective откройте expresses a request for a single completed action. The imperfective открывайте would sound more like a general instruction, an invitation, or an impatient command like "come on, get it open."
I know окно is the direct object. Why doesn't its ending change?
It is indeed in the accusative case here because it is the direct object of the verb. However, because окно is a neuter inanimate noun, its accusative form is identical to its nominative dictionary form.
What is the difference between saying Меня тошнит and Мне плохо in this context?