Where are you at food wise now at 7 weeks? Is it sloppy, soft? How much are you managing to drink? Its a big learning curve for anyone post surgery.
Ideally you need to drown yourself in water at this stage, that fills up your pouch and stops the hunger pangs. Did you have to do the milk diet prior to surgery? When I was on that I found I had always to have a drink on the go to keep me going, its the same post op.
Once you get to solid food you should notice an immediate difference as dense solid protein keep you feeling fuller for longer. Of course it can bring its own problems as eating too quickly or not chewing like mad can make you sick at this stage.
Hang in there, try more fluids, unfortunately wait until after solids for a while. Then if you are still feeling so very hungry you should get back to the surgeon or dietician for help.
Best wishes and good luck it should be worth it and work out in the end