Linkat, I noticed it getting better as soon as I got a call from a job I applied for and I believe my problem is the same as yours was, except opposite. My issue was not being able to find a job, instead of having a stressful job, but it all amounts to the same thing.
After I got the first call asking if I was still interested in the job (Monday) some of the pain went away, then after getting the call yesterday from the manager to set up an interview for today, a little more went away. Then after the interview today, again, it's better.
Now if I could just get that one last most important call saying I have the job, I think it'll make all the difference in the world.
If I don't get the job, I'm going to see doc for some drugs because I'll need them knowing I'll have to go back to work at the lobster shop