I feel like people are trying to make me feel that I'm not doing enough

People keep asking me what I'm doing this summer.
And I answer:
"working"
"oh really, that's nice"
"Yeah, I'm excited."
"Where do you work?"
"Where I've worked for the past year and a half." (usually I just insert the name of my glorious job here)
"Oh, huh, that's cool, what else are you doing?"
"relaxing, working, eating, sleeping, reading." (in my joking voice)
"Oh, well that will be nice."

No matter how they say it, I get the feeling that I'm not doing something right.
What do they want me to say?

"I'm going to travel for the school this summer." (that wouldn't be good)
"I'm going to Argentina for a trip." (apparently that fills up your whole summer)
"I'm going to work at a camp. (even camps don't start until June)

Do they want something else, should I be offering more information?

Should I read them my anti-list list of things I want to do this summer?
Should I explain what working means?
Should I explain what summer means?
Should I tell them all of the ministries and activities that I'm involved with this summer?
Should I be in an "organized" ministry/job that they recognize as such, and therefore they can believe that it takes up your whole summer?

Should I be doing something more?

I look at my summer, and it looks full. I see weekends that are already filled up. I see extra jobs/one-time fun things/friend lunches/weddings/church functions/special projects, all throughout my summer. In fact, I don't see a week where something will not be abnormal(from what I would consider a regular summer week). And yet, every time I tell someone that I'm working, I feel like they think I'm not doing enough. And I don't know why that is.