[cpncrunch]

(I'm fully recovered from CFS, although I still have occasional mild IBS).

There is certainly an overlap between CFS, IBS, lymph nodes, pain, fatigue, sleep problems and tinnitus: they can all be caused by stress. The most likely explanation ("I can barely stay awake during meetings") is probably that you need a better job.

Having said that, you do need to rule out other explanations, such as cancer. Talk to your doctor and see what he/she thinks.

[jchw]

Meetings were just an example; I can barely stay awake period. My job is great, and my work life balance is good.

And of course, we are watching for cancer. It’s very unlikely at my age, but I definitely can’t rule it out.

[cpncrunch]

Do you have exactly the same symptoms when you take 2 weeks off work to go on holiday (say, after the first week)?

[jchw]

Yeah, last holiday I took I felt horrid the entire time. I actually had some fairly bad headaches and ended up getting tests done; they came back normal.

[cpncrunch]

Headaches and fatigue typically happen after the stress, so if you do have a stressful job then it can take a few days or longer to recover.

Even if you like your job and you think it's great, that doesn't mean it isn't stressful. IMHO if you have meetings then your job isn't great, but maybe you're a strange person who enjoys meetings :)

Anyway, all I'm saying is to think carefully about your job and decide whether or not it is right for you.

Also worth getting a sleep study done, in case it is sleep apnea.