3 ct scans. Should i wait for 6 months.

Hello I had some kidney stone problems hydronephrosis so doctor asked me to get ct scan in the month of July 2021 I have done it but the reports are completely normal, though my pain wasn't reduced I met some other urologist in the month of sep 2021 again he asked me to get ct scan plain unable to bear the pain I have done ct scan again and it shows some mesentery lymph nodes were enlarged in the right side of the abdomen and they was no kidney stone... later I took medicines for stomach inf, the pain in the right side had gone and come to leg abdomen from the month of Oct 2021 Iam on medicines still the pain hasn't come down so again I met gastro in the month of Dec 2021 and he gave me some antispasmodic tablets Iam under medications but pain is still there so again doctor asking me to get a ct scan with contrast.. now iam really worried will I have any radiation that will affect my health later... Please do help me can I get a ct scan with contrast or should I wait for 6 months.