English question, please help?

Why are you sewing at the doctors?
I think you mean:
I had an injection this morning.
or My doctor gave me an injection this morning
In the USA they call an injection a shot

Well, you should look at the synonyms for the word 'get'. You can 'recieve', 'obtain', or 'acquire' something. Acquire is more like 'find' and obtain is very simmilar, it's means you 'get' something like 'obtaining informaition', or 'obtain skills'; it's usually reffering to a noun (person/place/thing)

I think either 'get' or 'recieved' would work best, 'taking' something suggests it's done yourself, and if you say it after refering to a person it implies you 'took' as in stole something.

I would put 'I recieved a shot from my doctor this morning', or 'my doctor gave me a shot this morning'; both work just as fine.
Using 'needle' could be confusing because 'needle' is the object, the verb 'shot' would be much more comprehensible.
Hope this helps!

You could say. This morning, I took a needle. This morning, my doctor gave me a needle.

I took a needle this morning, doe not really make sense. unless you are saying that you use drugs, however, it is correct grammar

My doctor gave me a needle this morning. This sentence is also grammatical correct. Why would a doctor give you a needle?