Usually Curious--
While I do agree with Pam about your mw to some extent, I also want to say this:
As a midwife, the thing that worries me most in any woman is stress. Thanks for reminding me of your situation--I remember you now

. Stress is a great ruiner of pregnancy and birth. Yes, it is a bad thing for the mw to allow her stress over your stress to get to her--and yet, I have seen how situational stress does impact birth negatively in one way and another--sometimes in small ways, sometimes larger, but it can always be seen in labors, deliveries and babies one way and another...just had a birth that I would say manifested mom's excess stress. I was very glad that this was fairly minimal as these things can go, and mostly it was a wonderful birthing with a healthy babe. But I have no doubt that mom's situational stress--really, far less than yours seems to be right now--impacted events in a way that a more relaxed mom would not have suffered.
It really doesn't matter 'what' or 'how many' the stressors are; what matters is the level of stress FELT by the mother. And I think I am hearing you say that you have reached an intolerable level of stress that is starting to drain your resources and create dysfunction (of some degree) with your pregnancy. Your bodymind is speaking loudly of this! I understand your mw's concern, especially as she is a friend who is no doubt a bit closer to your situation and emotional state than a stranger would be. I still don't think that she ought to get too wrought up over this herself--but in her shoes I believe I would be hearing alarm bells too on your (and baby's) behalf.
While Paige's suggestions are sound scientifically and I do not argue the benefits of the labs she suggests, in my opinion the key here is stress reduction. Time to hand off some of the load! So what if dh is clueless, treat him like a grownup and an equal partner and he will muddle through--IF you really step back and let go of things happening the way you would do them. You are doing too much, and the world will go on just fine without as much of you, while you get more rest and nurture yourself and baby for awhile. I can't say strongly enough how much I think stress is effecting you...and who knows? Maybe your life can improve in all kinds of unexpected ways over time, if you seek balance and calm now.
that's my 2cents. All the best to you and baby!