Is it normal i am so afraid of what people think of me

I do this too. Being in situations with allot of people scares me, even if it's a casual setting.

I often am too panicked to talk so, I wonder what people think of me. Do they think I'm dumb because of my inability to talk around them?

dont care what peope think of you. just dont think about them and youll be fine.

What a stupid question.

Its normal - part of growing up and becomming more confident in your skills and knowledge. There is a whole host of social phycology and age demographic topics within the workplace to explore.

What I have to do is just say what is on my mind and not think about anything else. I mean obviously I watch what I say but I don't dwell on it. I know when I do over think I end up sounding like an idiot b/c Im anxious. XD

If you don't think about it too much and relax a bit you're less likely to look like a "complete moron" I think.

Social anxiety is a common behavior. However, I don't think this is healthy for your self esteem. I think that, if you believe you sound dumb try to sound more intelligent. Plan out your thoughts before they escape your mind and then speak professionally. I think that you are putting too much thought into what others believe. At the end of the day, if you're happy with yourself, then that's the only approval that you need.

In my opinion NO...But i do this as well and try not to think about people judging me... they are out there. Try not to judge others....just accept and you might have a better time with this self judgement.

that sucks :S just go wild man if you are gonna sound like a moron anyway why not have fun?

lucky you have a job

Self consciousness is a normal state of human awareness. It is perfectly natural to be worried about what others think of you, especially when you aren't blessed with being particularly attractive or intelligent, which I believe is true in your case. There are many ways to deal with this, firstly you could become a crazy hermit lady who does 'art' and wears a large poncho, this is of course the most common way ugly people deal with failure. Another more suitable way is to plot to bring the down any who have mocked you, this is also known as a vendetta and is a well pursued career option, often it involves a slow progression to power and then a spate of murders other high profile crimes, this usually culminates in one final act of aggression which is then foiled by a cunning hero, this usually results in you being sent to prison to serve a lengthy sentence, this of course is a brilliant option for anyone self conscious as in prison they're all friends and everyone likes everyone, it's more of a love-in than punishment.
I prescribe this to you as the best option, though you could also just do some paltry attention seeking act like becoming a whore for the media with no discernible talent, such as Paris Hilton, Jessie J, Adele or Coldplay.
The options are varied.
I hope this has been helpful.