Hey man, there's been lots of great stuff offered here already but I said I'd just give my 2 cents. Different people take inspiration from different things and I've often found in my own life that one, seemingly minor, point completely changes my view on something and makes me see things in a better way or feel better about them. So with that in mind I'll just offer up a few more points, maybe you'll read one of them and something will just click inside you that helps you out.
The first, and most important, point is that absolutely no two situations are identical. No one else knows completely how you feel just like no one else knows how anyone else feels. With that in mind you might feel like no one really understands your situation completely and you might even feel slightly patronised by some support you may receive. The point, however, is that everyone has had their own difficult situations involving social anxiety and as a result people will generally be supportive. You have no need to be embarrassed or worried about social anxiety and the responses you may receive from friends because all of them (even if they themselves are too embarrassed to admit it and use some kind of condescending humour to cover that up) feel it to some extent. It might even be an idea to try and find other puas in your college or the area. At least that way you know you can talk openly about this stuff and even give each other in-field moral support.
Another point to make (relating specifically to awkward silences in 1 on 1 situations) is that everyone is self-conscious in social situations. More than likely, when there is an awkward silence, the girl is also self-conscious and panicking slightly that she can't think of anything to say. In order to not feel embarrassed, try to stop thinking about yourself completely. I know that might be hard but try FOCUSING ON THE OTHER PERSON. Don't think about yourself, just focus on raising their value and making them have more fun. Don't think about trying to sarge the girl, don't think about whether your body language is DLVing you, just focus on having fun and LEADING THE FUN INTERACTION. Do the crazy, childish fun things you'd do with a close friend.
A point needs to be made about the typical pua scolding of the "nice guy". THERE IS NOTHING WRONG WITH BEING A NICE GUY. In fact you should always be a nice guy, women hate when guys are assholes and so do other guys. The term "nice guy" used in a derogatory way should always appear in inverted commas because the pick-up arts do not have any problem with guys being genuinely nice. The term "nice guy" in this context, is a phrase used to describe a guy who supplicates to women. A guy who is needy and tries to win her favour and approval through buying her gifts or falsely behaving in a "nice" way in order to have a romantic or sexual relationship. It is sometimes, unfortunately, misunderstood by beginning puas to mean a guy who is genuinely nice. By all means look after girls who are puking up, someone has to and you're a great guy for doing it. But don't make a big deal of highlighting how great you are for looking after her. Take a leadership role here, look after her and BRING OUT THE BEST IN EVERYONE ELSE, take resonsibility and get people to help in a way that gets the best for the girl and doesn't draw too much attention thus embarrassing her. The next day when she's sober and better, have a word with her about her behaviour. Don't be an asshole but let her know that that kind of behaviour is not acceptable and it's not fair to other people to have to look after her. Leave the interaction with her feeling ok, not guilty or anything about it. Even give her a little hug to let her know it's ok but just as long as she knows she can't behave like that and expect other people to look after her again.
If you haven't done already, I would suggest that you make friends with 20 or so girls without any intention of hooking up with them. This will make you a lot more comfortable about girls in general. Plus, female friends that you aren't trying to sarge can be great for advice on style and the like and are even great for moral and other support (far more so than guys) when you are trying to sarge.
Hope some of this helps, if you have any questions feel free to post or pm me
