Increasing basophilia is a sign of acceleration!
[amboss.com]
Rarely, the aforementioned hematological disturbances manifest in dyspnea, transient ischemic attacks, or cerebrovascular accidents (related to leukostasis), gastrointestinal
[symptoma.com]
[…] nonspecific symptoms (eg, fatigue, weakness, anorexia, weight loss, night sweats, a sense of abdominal fullness particularly in left upper quadrant, gouty arthritis, symptoms of leukostasis
[merckmanuals.com]