6. Pain Under the Left Lower Ribs
Some forms of blood cancer irritate and enlarge the spleen, causing painful pressure under the ribs on the lower left side. An enlarged spleen may also press on your stomach, making you feel full even when you haven’t eaten, and contributing to the loss of appetite we mentioned earlier.
7. Night sweats. Night sweats happen when your body temperature rises overnight and sweating is triggered to try and cool it down. You may not notice getting too hot, but you will likely wake up when you become chilled due to drenched pajamas.
There are many causes of night sweats, but in terms of leukemia, they may be triggered by infection or sudden fever.