
Hi Rich
All pups go through the teething stage and some are worse than others, mine comes to mind :)
Have you any chew toys like the Kong puppy or teething keys? These help as she will hopefully chew them.
My Newf started from about then and at 8 months still has the odd chew on me but its not painful now just a 'I love you' thing :)
As their baby teeth start to develop the chewing may get worse as it's a painful time for them and you can buy soft chews that you soak in water then freeze. The coldness helps to numb the pain. Some of my friends have given their dog's ice cubes to suck on and that seems to work too. Oh and Kong chews can be filled and frozen as well.
You can buy bitter apple in a spray form as well to help them from chewing you, but I think as she's just 10 weeks that might be only needed at a much later date if she still nips you.
I would think the growling is her expressing her joy when playing with you after all she's just a wee pup.
When I got Bruce it had been a long time, over 16 years since my last pup and I forgot how painful the teething was. It can drive you mad but it will end once those adult teeth come through.
I bet she is adorable and you're having lots of fun.