I was diagnosed at 45 years old. I am now 59. I have been through 2 rounds of chemotherapy. One in 2009 at time of diagnosis. I also did not have any symptoms.My first round of treatment was cytoxin pill form and rituxamab intervenes. The first round was the worse but still not that bad. You start feeling flu like after a couple days then gradually goes away just in time for next round. But they do get easier as you go on. My second chemotherapy was in 2022 Bendmustine and rituxamab this one was a little easier but still felt crappy for a few days. Kept working through out both. Maybe a few days off here and there. Stay strong. I feel great still no symptoms. Don’t let this diagnosis get you down. You can totally live a good long life with this cancer.