I have a 12 month Siberian husky named Izzy and I used to feed her till she was full which was about 3-4 cups, twice a day. Everywhere I read online and was close to what food bags said. Then I was told to only feed her 1 1/2 cups twice a day so I started to and she now has a really fast heart beat at random times and is always wanting food. Izzy also has had an increase of not listening and has been chewing more things up. With feeding her 1 1/2 cups per twice a day, she also has a lot more energy and where she just runs and goes crazy. When I was feeding her more, she was relaxed and had a normal husky attitude. Should I start to feed her her old amount of 3-4 cups twice a day to help avoid these issues?