So I got the clear to move on to stage two so I ate pureed tuna with light mayo. I ate 2 oz and don't feel that full feeling I hear so much about. Don't feel much of anything for that matter. Is this normal?

Not sure how far post op you are, but remember that your body is still healing. It will take several months to have the full feeling as your nerves are trying to heal. It could also be your brain. Our brains are sneaky little devils sometimes especially when it does not get its way. Drink some water and go for a long walk. If you still feel hungry then eat something small with protein.

I was the same way, and do not panic, the full feeling will come to you but it takes time. It took a good 6 weeks for me to feel full. I was very surprised be the amount I was able to eat 2-3 weeks after my surgery and I thought great, I am screwed lol but the full feeling came soon, and the restriction is amazing.

One thing though, the full feeling that you used to know is gone, no more, forget it. At this time when you are full you will feel rather sick...bloated...nauseous...it's not that happy, warm feeling we used to get before the surgery. I miss that feeling Soon you will be surprised how little food you need. Oh and from pureed, soft food I can still eat a whole lot more, watch it when you switch to dense protein, hmmmm 2-3 bites and you just wanna stop eating FOREVER

I'm just over 5 months out and I think I've felt once or twice since surgery, which is unfortunate as I was hoping for this early trigger to help me out.

Since I don't have that added benefit, I just make sure to measure my meals carefully and stop when I know I should. Due to this, I've carefully followed all of the recommendations from my nutritionist as I refuse to go back to the way things were previously.