High stress jobs make things worse for anyone who has any pre-existing anxiety difficulties. Stress affects the body and also affects our mood and our perception of life and of ourselves. I think that's what you have just indicated in your post.
It may be, also, that you are feeling somewhat insecure about yourself and that might be the reason you think that others are judging you because, in fact, you are judging yourself in a negative light. There are many reasons why this may have happened and I'm sure you can think of some of them.
One way you can help yourself and which will also deal with the stress that is building up is simple exercise. I don't mean that you need to go join a gym or do anything terribly strenuous, but you do need to do some exercise even if it's just walking up and down stairs, walking in place, playing some active sport or what ever will exercise your muscles and give them an opportunity to help you. We know that exercise does more than we ever knew before. The latest research indicates that it has a dramatic effect on raising our mood, lowering stress and anxiety and generally contributing to our feeling better about ourselves and everything else. This is probably because exercise helps the body to produce substances that are mood elevating and, therefore, we get a double benefit from exercise; it keeps us in shape and it helps us in terms of our mood.
You might also want to try relaxation breathing which is another self-help technique that has been shown to help with anxiety levels. We have a video tutorial of this in our Tips column and I would suggest that you view this and begin using that technique on a regular basis. It won't happen instantly, but keep at it and you will notice you will feel better.
I do, of course, suggest to everyone if they are having any kind of physical symptoms that they see their PCP and get checked out just to be sure there is nothing that needs attention. Make sure you get enough sleep, eat a balanced diet and go out and have some fun on a regular basis. A balanced life means a happier, healthier life.