1) My stomach can be noisy from time to time, but honestly, nothing that is out of the normal. From what I've read here, the noises and the rumbling (for a lack of a better word) is often due to GERD and can be controlled by taking a PPI.
2) I'm 8 months post op, and I experienced hunger for a few weeks until I got back onto solid foods. There are days where I forget to eat, and other days that I feel like I'm hungry a lot. On the days I'm really hungry, I focus on eating healthy foods that are light on calories. The good thing is that it doesn't take much to fill me up.