Radiotherapy with cisplatin

Not sure if I am in the right section. I had endometrial cancer, had a full salpingo hysterectomy with ovaries and lymph nodes removed. Cancer had spread outside womb so

I have had 4 sessions of chemo, packitaxel and carboplatin. Was ok no really bad reactions but now I have got to have 5 weeks of radiotherapy with 2 courses of cisplatin.

Am more worried about this than anything I have gone through before, the side effects seem much worse. Has anyone else on here had this treatment? I am really wondering if I should go ahead with it.