Chemotherapy doesn't always make your hair fall out. It depends on the individual drug used.
Mine fell out, though. One day while at work I realized I could just pull little clumps out. This was fun for a while, because it freaked out the guy sitting in front of me, but then it became alarming. My wife picked up a big-ass electric razor on the way home and I became a bald guy for eight months (with a good-looking head I might add).
My chemotherapy would make me extremely sick to my stomach. I needed to take a very expensive drug called Zofran before every treatment. I tried going without it once and it wasn't pretty. I quickly realized that marijuana had the same anti-nauseant properties, and started having a toke before every chemo session. Worked a charm.
Getting the pot was easy because I live in Vancouver, British Columbia, Canada, and there is a legally-grey place called the Compassion Club that will sell you small amounts if you have a doctor's note recommending it. The police know about the Club but leave it alone because it is a community service (despite the people I saw in there, often with notes from their doctors diagnosing the sniffles, acne, etc.)