There was a couple in the elevator firstalready.

When the elevator started to go up, a woman said “I felt smell or curry so much,”” and other man said “Sure, I smell of curry too.” ¶
I thought, “I couldn’t smell anything but there might be a curry restaurant in the building and they might smell it.” ¶
At that time, I ate spaghetti or something and then went home.

Then I felt smell ored curry from the coat.

However I doidn’t know why the coat smells like this.

One day, I took the elevator to the restaurant area on the upper floor of themy building.

There was already a couple in the elevator first.

When the elevator started to go up, a woman said “I felt smell a strong scent orf curry so much,”,” and other man said “SFor sure, I smell of curryit too.” ¶
I thought, “I couldn’t smell anything but there might be a curry restaurant in the building and they might smell iing that.” ¶
At that time I ate spaghetti or something and then went home.

Then I feltcould smell or curry from themy coat.

However, I don’t know why the coat smellsed like this.

One day, I took the elevator to the restaurant area on the upper floor of the building.

TAt first there was a couple in the elevator first.

When the elevator started to go up a woman said “I fsmelt the smell orf curry so much,”a lot,” and other man said “Sure, I smell of curry too.” ¶
I thought, “I couldn’t smell anything but there might be a curry restaurant in the building and they might have smellt it.” ¶
At that time I ate spaghetti or something and then went home.

When I took off my coat, I remembered the couple talking about the smell of curry, then I stuck my face into my coat and smelledt it.

The past from of "smell" is "smelt".

Then I felt smell orsmelt curry from the coat.

One day, I took the elevator to the restaurant area on the upper floor of thea building.

Another option: One day I was taking the elevator up to the restaurant floor of a building.

There was a couple in the elevator firstalready.

When the elevator started to go up, a woman said, “I felt smell or curry so much,”” and other man said “Sure,partner replied, “Right? I smell of curryit, too.” ¶
I thought, “I couldn’an't smell anything but there might be a curry restaurant in the building and they might smell it.” ¶
At that timethat they're smelling.Ӧ
That day I ate spaghetti or something and then went home.

When I took off my coat, I remembered the couple talking about the smell of curry, then I stuckso I put my face into my coat and smellniffed it.

Then I feltI smell ored curry fromon the coat.

It smelled like it was completely covered in curry powder.

Yours is correct, but if you want to emphasize a very strong curry smell you can add "completely" 😂

However, I don’'t know why themy coat smellsed like thisat.

There was a couple in the elevator firstalready.

When the elevator started to go up a, the woman said, “I felt smell or curry so much,”” and other man said, “Sure, I smell of curry too.” ¶
I thought, “I couldan’t smell anything, but there might be a curry restaurant in the building, and they might smell it.” ¶
At that time, I ate spaghetti or something and then went home.

Then I felt smell orf curry from the coat.

However, I don’t know why the coat smells like this.

When the elevator started to go up, a woman said, “I felt smell or curry so much,”” and .” Another man said, “Sure, I smell of curry too.” ¶
I thought, “I couldn’t smell anything, but there might be a curry restaurant in the building, and they might smell it.” ¶
At that time I ate spaghetti or something and then went home.

When I took off my coat, I remembered the couple talking about the smell of curry, t. Then I stuck my face into my coat and smelled it.

Then I felt smell orsmelled the curry from the coat.

However, I don’t know why the coat smells like this.

One daytime, I took the elevator up to the restaurant area on the upper floor of the building.

There was already a couple in the elevator firstas I walked in.

When the elevator started to go up a, the woman said, “I felt smell or curry so much,”” and ots so much like curry.". Ther man said, “SureYeah, I smell of curry, too.” ¶
I thought, “I couldn’t smell anything, but I was thinking there might behave been a curry restaurant in the building and they might smell it.” ¶
At that time Iwhich was the source of the aroma.Ӧ
I didn't think much of their remarks, but went ahead into the restaurant, ate spaghetti or something and, then went home.

When I took off* my coat, I remembered the couple talking about the smell of curry, thenso I stuck my face into my coat and smelled it.

OR: *When I took my coat OFF ...
I deleted "and smelled it" in order to create tension and also because of context. The readers know why you stuck your face into your coat. :)

Then I felt smell or curry from the coat.

I omitted this sentence. The next one should be enough.

I was* so embarrassed.

*OR: felt

However, I don’t know why the coat smellsed like this that day.

OR: However, to this very day, I still don't know why ....

There was a couple in the elevator first.

When the elevator started to go up a woman said “I felt smell or curry so muchs like curry,”” and othera man said “Sure, I smell ofit definitely smells like curry too.” ¶
I thought, “I couldan’t smell anything but there mightay be a curry restaurant in the building and they mightcan smell it.” ¶
At that time I ate spaghetti or something and then went home.

This is a bit confusing. Did you eat spaghetti in the elevator?

When I got home I took off my coat,. I remembered the couple talking about the smell of curry, then I stuck my face into my coat and smelled it.

Then I felt smell or curry from the coat coat smelled like curry.

It smelled like it was covered in curry powder.

I was so embarrassed.!

However II just don’t know why the coat smells like this.