I am 27 years old female.I have undergone many head ct scan that is 2 head ct scan just in a period of 2 weeks .in the same year after 2 months had a chest X-ray.this was all in 2018 .befor in 2017 I had ecg twice and 2 d echo .also had a breast scan.recently now in 2020 I had chest ct scan.all these were just to clear my doubts and nothing serious.my query is 1)Is there any chance of cancer in future for the repeated ct scan of head twice within period of two weeks? 2)is there any chance of cancer due to all the X-rays of chest twice in a year? 3)is there any chance of cancer for breast scan and ecg and 2 d echo in the same year? 4)is there chance of cancer for the overall exposure of radiation within short period of time? I am worried bcz the safe limit is 1msv to n a year but I have crossed it in head ct scan bcz head ct scan alone is 2 msg and I took it back to back twice within two weeks also chest ct scan is 7 msv and all X-rays combines will total to 0.7 msv .plz plz reply