I've had to change treatment 4x so far since diagnosed in 2011. Each time as the treatment was failing I saw an increase in thumb-print-like bruising, hot flashes and cold chills, aches and pains (like having the flu, but no fever).
I have BCR-Abl bloodwork done every three months along with a CBC blood test for comparison. For me, eventually these increased symptoms were matched in the BCR-Abl bloodwork results.
On the flip side, when the treatment was becoming too harsh, I experienced intense rashes, increased fatigue, increased diarrhea and vomiting, swelling, and runny nose/cough (like having a cold). For me, eventually these increased symptoms were matched in the CBC bloodwork results.
It's like a balance that needs to be kept and when it goes wonky I have to find something that works better.