I agree with everything everyone has said.
You need: LOTS of water, never, ever go anywhere without it. Sip it all day long; PROTEIN, even if you have to drink it, you HAVE to get your protein in or you will not continue to heal, lose or be healthy; take those dang vitamins.
You need: a multivitamin, Iron (preferably with vitamin C, such as Vitron C), B12, calcium and possibly B1 (thiamin). When are you due to have bloodwork done again?? I reccommend you call and ask to have it done NOW if you don't have an appt. soon.
Again: WATER, PROTEIN, VITAMINS!! YOu MUST have these.
I ALMOST FORGOT! CALL YOUR SURGEON regarding not being able to keep food down. He/she needs to see you about this. PRONTO.
(nurse duckie is done.

)