hi hampsterbait sorry to hear about the situation you are in.
i had my chemo over 30 years ago, firstly they gave me by mistake a double dose & i lost my hair after only 3 days, i had a little nausea but never was sick. i also continued to work all the way through it.
the chemo drugs i was on were vinchristene?, prednisone & 1 other i can't recall but do have it's name somewhere.
maintaining a good healthy diet, as many have already advised.
pot sounds like a good idea if you can get it legally
i wish you well with your treatment