Should I feel bad for my co-workers?

I just got back from the gym. I like to go over to the gym and jump on a treadmill during my lunch hour for many reasons. First and foremost because then it is done. I don't have to drag myself to the gym once I am home. Also because my manager makes us take an hour lunch so instead of eating for an hour I would rather burn calories.

So today I went to gym and ran. And I ran pretty fast! I ran 3 miles in 27 minuets 10 seconds. (I would like to be doing it in less that 27 minutes, but you have to start somewhere right?)

I then walked a tenth of a mile and ran another half mile just as a sort of cool down at 6.4. Surprisingly my body felt good. (Surprisingly because I over-ran on Monday and I am feeling sore). But really the running felt good.

I walked like a minuet after that and then zoomed to the locker room for my quick shower and re-dress for the rest of my day at work. I blow dried the sweat in my hair so as to make it appear clean, dry, and normal. (I am not sure this is convincing but I don't really have time to get it completely wet).

And then I walk about maybe .2 miles back to my building and take the elevator to my desk. I know my face shows my workout my cheeks are bright pink! So I am not really fooling anyone, they all know I go workout. But the thing is I take the shower as a goodwill effort to not smell for the afternoon at my desk.

Unfortunately my sweat really starts pouring off my body right around the time I get back to my desk because my body is only just begining to truly cool down.

So should I feel bad that I sweat for about 5-10 mins hardcore in my cube? Do you think my co-workers notice and think I am gross?

(Not that it will change my routine, but I do wonder about social norms sometimes :))