I was diagnosed with nhl in 2011, low grade follicular with evidence of high grade found in bone marrow. Following 6 round of R chop chemo and 1 high dose methotrexate chemo lumber punctures and 2 years rituximab maintenance I have lived well until now. I am now experiencing regular night sweats and fairly rapid weight loss. My consultant is arranging a ct scan. A worrying development and any words of encouragement would be much appreciated.