Prior to having successful FCR treatment for CLL in 2010 I was suffering with severe headaches up to 15 times a month. After the FCR treatment they disappeared. In December last year a CT Scan showed that the lymph nodes under my arms had enlarged and were just over 2 cm. Earlier this month the headaches have also returned. Has anyone in this group also suffered recurrent headaches which they believe is part of their CLL problems?