Meditation "thinking" "imagining" mental note : Ven . Mahasi Sayadaw tradition

Practice Ven . Mahasi Sayadaw tradition meditation -------------------------------------------------- I have had two incidents recently . 1. Said something that should not have said 2. Stopped happening an argument that my mind really wanted to do Now when I do mindfulness meditation following happens 1. Haunting "bad feeling" , so I make a mental note of "thinking, thinking" 2. Mentally "imagining" that I'm performing that argument " ,so I make a mental note of "Imagining , Imagining" But above two process keep happening even I do relevant mental note for many times (around 20 times ) Eventually they stop but later again pop up ( so I continue the same mental noting) **Should I keep continue mental noting or try to surpass those ? Is it OK to keep going such imagining / thinking for long time while keeping mental notes ?**