Cancer and nausea and autism, Oh my.

Hi folks. Long time lurker,first time posting. I'm currently on day 9 of my first round of chemo (Herceptin and pertuzumab plus carboplatin and Taxotere) and wow am I struggling with food. All my old faves now taste awful and the textures are nightmare fuel. Even my beloved sparkling water (plain) has let me down. My autism hates this. I have ensure at home and it's ok but I don't typically drink milks or juices, or even flavored waters. Anyone else have cancer with AuDhD? Any ideas for 'safe' meals and snacks would be greatly appreciated. On a related note, anyone have tips for how I can stop being mean to myself? My hind brain keeps telling me I'm being kind of a baby right now.