Costochondria (Sternum Pain)?!

Hi! I have a really minor case of costochondria, and I was wondering if the pain is brought on by wearing my wire bras all the time, even when I sleep and run!. (I wear it when I sleep because I am constantly bit by spiders in my sleep since I live on a hill!. I get spider bites in my armpits and I don't want to get them on my chest!) Maybe should I wear a sports bra when I sleep!? (I definitely need to when I run!.) Also, what are some good stretches to alleviate the pain, and when do you estimate will it go away!? i have had it for about a month!. Thank you very much! I am 13, by the way, and I run 5-6 days a week with a wire bra, so I am guessing that exacerbates the pain!.Www@Answer-Health@Com

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