Please advise if it's normal not to get cat scans after breast cancer treatment?

Depends...: ...On many factors. Current standards of care do not recommend scans for patients with low risk for recurrence as they do not improve the overall chances of surviving the cancer (this was proven in at least 2 or 3 clinical studies). Patients with stage 3 cancer often do get scans, especially in the beginning, to do a complete staging.