Ever heard of a dog grieving itself to death?

i had two gyps come in heat at the same time one year they were mother daughter...well they both got bred one by my yarddog bulldog and the other by the milkman i guess...well the daughter only had three pups and two of them died so i was letting her raise it and my older gyp who i ddnt know got bred and by what i still have no clue he was black all i can say....long story short i disposed of the pups and my old bell dog sat there where she had giving birth for two days after i got rid of the pups and wouldnt eat move anything just sitting there grieving and this was a gyp i raised from a pup a i copuld read her body languauge like a book so i decided to take daisys (who is bells daughter and were chained by each other) lone pup and put it on bell when it was around 3 wks old she still had plenty of milk so i was like what the heck lets try it bell took right over like it was hers and up until the day ole bell died that pup always ran up to her as if it were its mom and bell never missed a lick after that she was as happy as pig in slop