Hello redditors. I need help with this.... Sort of problem. 

I've been trying to make a bigger friend group, being that I only have one friend. My mom says I should make more friends so I don't only have one. Thing is, I've only had a female friends in my life. Pretty much everyone in hang around are girls. Now, I'm a female myself and I don't really like hanging out with my own gender that much. After a while, it just gets irritating and annoying. Being around girls 24/7 sucks. I want to make male friends nothing romantic or anyting like that but just something to balance it out. Here's the catch. I have a strong fear of talking to men/ boys. There's a few guys I wanted to make friends with and they're pretty cool people but something just holds me back from talking to them. I don't get a gut feeling that something's wrong with them or anyting but it's just that I have anxiety around males. Nothing in my childhood has really resulted me in having a phobia towards men at all but for some reason I'm scared to talk to them. I don't know what it is and I don't know why. Am I scared of rejection? Why would I be? I'm not asking them to date me I'm just asking them to be my friend. If anyone out there can help me, what is this called? Do I have an anxiety problem of the opposite gender? Could it be but I have no experience with the opposite gender? Or am I just extremely shy!