I Woke Up, And My Throat Was Messed Up!

One day I woke up (like any normal day :p) and I was talking to my brother and I tried saying something in a higher pitch (which is easy for me to do) and I noticed I couldn't do it. When I tried, my throat and voice felt like it was straining. It was very weird because my throat wasn't hurting or anything comparing to like a sore throat, or strept throat or anything like that.

Well I thought nothing of it until when trying to create music, because i'm in a rock band and im a vocalist. Everytime I tried to sing a high note which was required in one of our songs, I couldn't hit it. I just would strain. And also, since some of my rock involved me "growling" or "yelling/screaming" I can't even do that! Hell, I can't even scream across the street if wanting to get someone's attention. (i was always proud of that because if I was yelling at someone across the way, people knew it was me cuz I have a distinct yell haha) now, it sounds like i'm going through puberty and it goes from raspy yell to like weird voice tone where before it was just raspy yell. (by the way, i'm 22 years old) and all this with really still no obvious pain.

It's been 2-3 weeks. It is better, but I still can't yell or hit really high notes without hitting these problems. Sometimes during the day I can hit high notes, sometimes I can't, but my yell is still disoriented. Anyone have any idea about what is going on? (i haven't had a chance to hit the docs yet, so I decided to first ask you guys)

thanks in advance.