Question

تو حال خودم بودم به انگلیسی چی میشه؟

Answer 1

I was in my own thoughts. 

If you google it you'll find a lot of examples sentences in which this phrase is used. 

He took out the key out of the ignition and opened his door and then he looked at me while I was in my own thoughts. He came to open my side of the door.

Comments

Like. +1

Would u provide a resource? 

Answer 2

I was minding my own business.

Example:

"I was minding my own business when I heard loud bangs and felt a stinging pain in my cheek.