My manager recently asked me "How are you doing? Everything OK?". I felt happy that he asked me that question, and felt that he was really concerned about me. I was doing well. So I told him that and followed it up with "Thanks for asking." Does the statement "Thanks for asking" sound rude (kind of like I don't need to tell you)? Is there a better way to express the expression or can you use your feelings to prove how you feel?
I find this to be a fairly common exchange in customer service (CS) situations (cashiers, waiters, telemarketers, and the like) these days:
CS: Hello, how are you doing today?
Me: Good, thanks, and you?
CS: I'm doing great, thank you for asking!
Apparently, the phrase "thank you for asking" is considered the height of customer service etiquette now.
So not only is saying, "thank you for asking" not rude, it's a form of politeness that's scripted often into customer service interactions.
I'd rather place it among ironical phrases, with rudeness intended or not intended:
— Lend me a grand, dude?
— No such money on me, pal, but thanks for asking.
— I seem to have scratched your car a bit while trying to park… Are you okay?
— Well, not exactly, but thanks for asking.
If the person you're talking to doesn't expect any irony, I'd suggest that you choose some other similar phrase with no potential negative connotations.
As to the better way of expressing your gratitude, I think sincere 'I'm glad that you've asked me' will serve the best. Note that the brevity is your enemy here: even 'Thank you for asking' will be a fitter choice than 'Thanks for asking'.
I can't imagine a rude phrase containing thank you but that is not so important. In oral conversations most of the politeness lays in the contexts.
If you wanted to answer more formally you should have used something like Thank you for being concerned, It is really very nice of you to ask me.
If it was more informal you can use some slang- Thanks I am mighty fine boss, I am feeling OK like fish in the ocean, I am pleased as a punch today.
It is OK to use Thank you for asking, it is informal. The expressions is not carrying any negative meaning BUT in my humble opinion it is very plain boring answer. Well trying to be social you can ask back: How about you boss ? and carry on a further conversation.