Could you please tell me if it is okay to say "for me" in this example

It doesn’t sound natural, but you could say “I’m going to get myself a drink.”

"I'm thirsty, I'm going to get a drink." Or "I'm thirsty, I'm going to get a drink for myself."

When the object (direct or indirect) of the verb is the same as the subject, you use a *reflexive pronoun*, which ends in “-self” in singular and “-selves” in plural. Since the subject is “I” and the recipient of the drink is the same as the person getting it, you use “myself”: “I’m thirsty; I’m going to get *myself* a drink.”

It should really be "for myself". But a native speaker would be less likely to say "get a drink for myself", and more likely to say "get myself a drink". In my dialect, we've also been known to say "I'm going to get me a drink", but that's definitely nonstandard. 😂

It's redundant. "I'm going to go get a drink" implies you're getting it for yourself. And "I'm thirsty, I'm going to go get a drink" makes it pretty clear that it's for yourself. If you wanted to be explicit about the fact that you're getting it for yourself you could say "I'm going to get myself a drink." But in general that's not necessary.

You have two options: 1. Omit “for me” because it’s completely obvious and not quite right grammatically because you are getting it for *yourself.* 2. Use the reflexive version. I’m going to get myself a drink.

It's fine. Stop worrying about silly grammar issues.

Your intuition that "for me" is unnecessary is correct. It sounds very unnatural. Also, the "I'm thirsty" part is fine but it isn't necessary either, you could just say "I'm gonna go get a drink," "I'm gonna go get myself a drink." The "go" in these 2 is optional.

I \*might\* say that to emphasize that the drink was \*not\* for someone else. Example of a rare scenario where it might be used: Someone asks you to get them a drink, but this person has an annoying habit of always asking you to buy them things and never returning the favor. This would be a passive-aggressive way to tell them you aren't getting them anything. But even in this case, I think "get myself a drink" or "get a drink for myself" would be more natural. The more usual way to say it would be "I'm thirsty, I'm going to get a drink"

Others have already explained that you need the reflexive "myself" for this situation. It's worth noting that "myself" is often not strictly needed for clarity (as others have also pointed out), so when it is used, it's often for emphasis.  I would say "I'm going to get myself a drink" sounds more enthusiastic/cheerful than just "I'm going to get a drink" It could also just be emphasizing the recipient: "Joe's partner brought drinks for both of them, but I'm forever alone. I guess I'll have to get myself a drink." (As opposed to someone else getting me a drink)

Everyone's already addressed reflexive pronouns. So, I'll simply add that *for me* would often be used in a question. * *Is that for me?* * *Are you looking for me?* * *Did you get a drink for me?*

As others have said, you would say 'get myself a drink'. Using 'for me' is not *technically* wrong but comes off weird, like you're emphasizing that you're only getting a drink for yourself and no one else, because it is unnecessary in that sentence. So it can potentially be seen as rude. "I'm going to get myself a drink." is entirely natural and has no such connotation, unless you deliberately use a certain tone/emphasis, but that goes for every possible sentence.

1, it’s unnecessary and 2, it’s grammatically incorrect. If you’re going to insist on extending the sentence past “I’m thirsty, I’m going to get a drink,” the correct pronoun to use is “myself.” So “I’m going to get a drink for myself.” But honestly, the last part is already implied by the fact that it directly follows the statement that you’re thirsty.