Kellyhoov

I am 4 weeks post op and am having a problem with my diet. I am having a hard time getting the amount of protein in that the Dr wants me to have. Because I am eating all protein, I can’t eat any veggies or fruit. I’m worried about my malabsorption. I am taking the multivitamin but is that enough? I also can’t get the amount of water in me. I’m too full from eating all the protein. Can anyone give me advice thanks