Oh my!! My dog has done this 3 times!!!
once my string on my pj's. it all came out!!
second was string off her toys!! all came out!!
third was my floor rug that she pulled apart!!! all came out!!
same thing happened pooed heaps and had swollen bottom.
vet instructed me to feed to her again to push it all through!!!
its scary and i now do not allow anything stringy in my house!!! you think you have everything out of reach but obviously not!!!
glad all is ok