no u dont have to worry, nothing is going to happen, i have read about it,
what u should do,
1) transfer that domain to some bulletproof company like moniker or some chinese company,
2) start a bussiness/fake it , by the same name of ur domain name.
then they cant do anything.
law says, if ur sitting on domain only to get higher bucks and if its a trademark of some other company, then u have to let it go, so if u dont want loose it start something with it ASAP , and dont forget to tranfer it to some bulletproof registrar,
suppose google wins the battle , still they cant do anything with bulletproof or chinese registrar.
GOOGLE DOES NOT OWNS INTERNET.