High Functioning--is it normal to have anxiety over wearing new items of clothing?

I'm in my 20s and have high functioning Asperger's and as a result have an accompanying anxiety disorder. It manifests itself when I have to go out in public and makes me feel really insecure and have (for lack of a better word) sensory overload.

My main question is--I heard that people use sunglasses to help with the overload feelings during the summer and I feel that this would be beneficial to me. The problem is this would make my anxiety higher as I'd feel self conscious. It's kind of a giant loop. Does anyone else feel this way?