Some guys don't care. Others do. But even if they do, there are always going to be guys taller than you, and they'd be fine with someone your height. And judging by your pictures in your profile, you are absolutely gorgeous, so you totally should not be worrying about your height.
I wouldn't be surprised if some guys are scared off by tall girls, but most of the guys I know aren't like that. Some guys I know like short petite girls, some prefer long-legged tall girls, and some don't have a clear preference.
Personally, I'm in the third category. I've known lots of tall and short women who I thought were gorgeous. I've never dated someone taller than me (I'm 6'0") but I certainly don't think it would be a turn-off.
i think guys tend to go for girls who are shorter than them, and since there are plenty of guys who are 6'+ I doubt you're going to have a problem. if you were 6'4" then maybe you'd have some difficulty. but seriously, my friend in college is 5'11" and she was dating a guy for some time who was only 5'6". so there are clearly exceptions to the rule that guys like short girls.
haha au contraire, I'm also 5'10'' and I think it worked out fine for me personally. just make sure the height discrepancy isn't that severe...I was at a club once this summer, overseas, and this guy who I was kissing told me he picked me out of the crowd because I was tall