WOW I am sorry to hear all this and don't have much else to add... except that many times "all" the tests come back okay yet... not really? Make sure you get a copy of the results. Sometimes ppl who are sensitive may show up on the low side of normal but it's not good enough for them... another doctor might realize this and take different action... plus having the actual numbers of the test results allows you to check with other resources.

Plus, there are always other tests... and I'm sure if you don't find some help, more ideas from here will abound. I know of many people who have gone through batteries of tests but not for, say, thyroid or pituitary or... etc.

But, yes, stress can do it too. I guess you are working TOO much (operative word is TOO) to try and figure out if staying at home, off your feet and --worrying-- also allows your feet to swell. It probably isn't anything "only" in your head though... we are a connected creation and there's something going on physically.

Try reaching out to support groups in your area, or church, or social services... even if they can't help you directly, they may have an idea or two that will help (how to "average pay" your utility bills) or such.

Keep posting, something you say might give another here a better idea.

Take care of yourself... it isn't being selfish... it's being wise.