I am the same way. What sucks is that the only real cure is doing the very thing you are most afraid of. Speak to people. Speak in public when you get the chance. Yes, you might embarrass yourself at first, but learn to appreciate and embrace the embarrassment as part of the learning and growing process. Especially while you are in college; defeat this thing in front of people who you will only know temporarily before you get out into the working world. Start with small groups and work your way up if you can. Check to see if there is a Toastmasters meeting in your area... this will be a supportive group of people who all have the same anxiety you do, and you can help each other. The more practice you get, the more comfortable you will feel.
If this fear is to the point where it is a debilitating force in your life, you can talk to your doctor, who can prescribe medication to calm your nerves, but I think it is always best to solve without medicinde when you can.
http://www.toastmasters.org/
same problem here..u need to realize that probably about half of the class is feeling the same way..just get up there do your thing sit down it's not highschool anymore so you should care what people think of you...i know it's hard cause i still have problems with it i turn red etc etc....you can do it
there are a lot of people that have a fear of speaking in front of people. if you feel this is more than that i suggest talking to your dr about it. some people suffer from an anxiety disorder and sometimes meds can help. congrats on going to college!