Yes ..same thing. Thank you..at least I feel better now.

Yeah sorry i think we posted at the same time. glad I could help anyway

I think it doesn't mean anything like "I wanna know" or "I wonder", it is not possible.
After thinking, I think it's just a very bad sms writing of "işteyim" (which means "I'm at work"), in bad chat language, it's written as "işteim" and I think he missed the "i" as well and it has become "iştem" and with the non turkish characters: "istem".

yes i've just thought in that way, too

Even more confused now! It was from a she and it was to my friend. Thanks guys

"istem nasıl gidiyor" is meaningless. "Nasıl gidiyor" means "How is it going"?