Why is my dog having very distended stomach but is very thin? It's been 2mos. Since she gave birth to 4 puppies.. But after several weeks, she became thinner & eventually her stomach became very distended. What happened to her & what do i need to do?

Did you do your post whelp 24 hours after whelp and have you checked in with your vet at all since? They do tend to lose weight when nursing, it takes a lot out of them but that her abdomen is also distended may be a concern.
You should see your vet to check that she hasn't developed a uterine infection or some other complication. It's preferable of course to catch and take care of while their condition is still stable. Uterine infections may be fatal without prompt vet care. I hope it's nothing serious and that she's okay and back to normal soon, please let us know. Good Luck.
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