My Dad was diagnosed with the same cancer. He had the same treatment - CHOP 6 cycles. My Dad was quite sick and in and out of the hospital, but after his 3 treatment (and they gave him an extra week to get back on his feet for the 4th treatment) he improved. They gave him something for the nausea and it worked great and he got along fine throughout the rest of the treatment. I hope your treatment goes well and you start to feel better. Take care.