To be really pissed off at having to move again?

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Will try to keep this short!

My DH is a manager. We have moved so many bloody times, we moved 6 months ago with a 4 and 2 yr old and a week old baby. My eldest started school, my middle one nursery and both love it. My baby had a life saving op and things have been very stressful.
Now my DHs job is going very badly and it looks like we are going to have to move again. My DH is incredibly stressed and down about it and I'm trying to be supportive but I just feel sick thinking about the upheaval, moving schools etc.
I really need to be a supportive wife. I am a SAHM so I suppose it doesn't really matter where we are. I just feel like sobbing. I'm so happy here and so are the kids. I feel like I'm being a bit selfish worrying about packing and changing fucking doctors when my DH is falling to bits.

Thanks again, yes really good point is not having to find a house/sell old one so thats much easier. It's really petty but I love this house and we actually have a roof terrace garden which is incredibly rare and I really don't want to give it up and spend another summer traipsing to the bloody park!
I was just so looking forward to the boys playing out there in the summer, and how the fuck do I tell them that we have to get rid of the swing and seesaw we got them for christmas? Its silly really but it just breaks my heart.
It's been so bloody hard on them, my eldest was all set to start school, had been to all the settle in stuff etc and we had to tell him we were moving and he had to start a different one. They are such wonderful kids and they had a baby sister and moved a week later, then school started and they have been so good about it all.
Sorry, I seem to be writing essays on here! I'm just very grateful that my first ever thread on AIBU seemed to go quite well, I was all prepared for a flaming!

Gosh, it must be hard for you to have to move so often. Just as you get settled and organised you have to get going again.

I understand the necessity of earning a living, of course!

But in the long-term, your DH does need to take your children's schooling into serious consideration, as it is so disruptive for them to change schools every year or two.