I have a pitt that will

Linda Sue

I have a pitt that will growel at the grandkids, well all but 1. And she will also get a stuffed animal and even ger agressive with me when iI try to take it away. Pepole are telling me to put her down, I cant do that, She is a great dog. She hasnt bitten any one but I dont want it to get that far. I just dont know what to do. She does this when ever she is in heat.  Some one please let me know what I can do…   Thank you.    Linda Sue