The stress monster

I am not a stress monster.
Really.
But the stress monster has been nipping at my heels lately.
My job is becoming a little more overwhelming. I want to do more here, and I want to learn, but the more I know, the more I can do, and the more I have assigned to me. I feel a teeny bit over my head right now. for some reason, this feeling makes me want to
a) quit my job and only deal with social/family/general life responsibilities
b) go back in time to college (why did it pass so quickly)
c) run screaming
I have not done any of those things (to be fair, only option c is actually possible unless someone lends me a time machine).
The weird thing is how stress affects all parts of your life. I feel like I am doing okay not letting stress invade and take over my life until I realize little things. I fall asleep during conversations and movies I am enjoying. I realize that my jaw hurts because I have suddenly started clenching my teeth; when and why, I don't know. Josh tells me that I am snoring, breathing loudly, and moving a lot in my sleep. I have dreams about work.
I am normally a very heavy sleeper. I fall asleep and stay in whatever position I was in until morning. Lately I'm having trouble falling asleep at the right times and staying asleep, and waking up is a challenge. I toss and turn and wake up frequently. I have begun to remember a lot of my dreams, and among them are dreams of work. Many are mundane; I dream of things I haven't done or need to do, or sending email, or sitting at my desk. A memorable one last weekend was that my job was sending me to Florida for a week. I had a mixture of excitement and sadness. I knew it was a good opportunity for me, but it was taking me away from my home and family. Then they came to pick me up for the airport and I didn't have pants on. I know this is a typical "feeling unprepared" dream, but I remember the disappointment of my co-workers the most. It seemed to drag on and on and never in the dream did I find some pants.

I need a vacation.

But seriously, do I listen to dreams and the feeling I keep shoving into the back of my mind that this job may be too much for me, or do I ignore those thoughts, realize that they are deceptive and ruinous, and inspire myself once again that I can do this?