RNY gastric byp!!!?

my problem is I do not feel the full feeling ,yes Im only eating 2 ta 4 oz at a time but, its every 20 ta 30 min when it should take me 30 min to finish and feel full for a good hour. With the soft food i can go up to 6 oz and still not feel full so I stop because crud I do not need this to fail .and water as crazy as it seems I do get the full feeling after one sip and have to wait 10 min to take anouther.Please if you have no knowlege about the byp or experiance please do not answer