My husband was at the same place when his symptoms started....it hurt him to eat. I made smoothies with mango, banana, yogurt, ensure,protein powder, cruched ice....or whatever nutrients I could get in them. I soaked unsalted almonds overnight to soften and put a few in also. The shakes were about all he could tolerate and he slowly sipped on them.
I found that he got sick of the Ensure and found Benecalorie on the Internet....it is made by Nestle and packs 330 calories in 1 1/2 oz., which is easier to tolerate than a large volume, especially after gastrectomy
There are different kinds of meds for Nausea that don't make you sleepy. My husband did not start any until chemo.
Everyone needs an advocate.....stay on the Dr. to address the cancer treatment....the faster they know what stage or involvement of it the quicker a tratment plan can be started.
Private message me if you have anything that I might can help you with. I just have our experience to share with you.
God bless You!
Sandy
T