Am I Crazy? Or are they?

Okay - let me pose this question...
Since we have hired this girl there have been several small instances that leave me puzzled...

1.) I was asked if she smelled.
2.) I was asked if she was working too slow.
3.) I was told that her attire was too casual and that my boss spoke to her in regards to this. Yet the following week the supposed inappropriate attire was worn again and nothing said.
4.) My boss calls me and asks me to address her attire as too casual for the front office. She said that it needed to come from me this time.
5.) The new hire had 2 family emergencies within one week of each other, causing her to be out for 3 days. When speaking to my boss about this, she said "Oh this is not good".

Now this attire thing is baffeling for a few reasons:
1.) On my first few days working here, over 8 years ago, I wore business attire and was told that I was too dressed and that were casual.
2.) I've worn jeans, sports jersey, t-shirts, tie dye, hippy dresses to work - in the fron office.
3.) Several other co-workers have worn sweat suits, jeans, t-shirts, and the likes - in the front office.
4.) When speaking with the new hire, I mentioned that the boss had already spoken to her about her attire. The new hire says no such discussion had ever occured. Now I have to believe her because the attire that was in question on the first occassion was worn again a week later as I mentioned earlier.

Oh - one more tidbit - the new hire is a minority.

So am I crazy for thinking something's wrong here? Or are they crazy for trying to pull this crap?