If anything you probably have a higher chance of getting in - some schools ( UCSF, hmmm,hmmm )seem to almost prefer non-traditional non-science major students. I swear everybody I know who got accepted/interviewed there is either psychology, computer science, sociology or literture major.
Remain a science major if you want to continue being an unwholesome not well-rounded geek but if you truly want to get somewhere in life I suggest you run to the registars office first thing tomorrow morning
and switch to business.
Personally, I should have majored in French - majoring in chemistry/biochemistry was the stupidest thing I've done ( too late now I guess.
) Not only I would have fluently spoke the most beautifull language in the world, but I would have had a much easier time chatting up hot french guys in case if I ever needed too.