<s>[INST] Hi Doctor, My mother has undergone hemithyrodictny 1.6yr before and prior to that operation for breast cancer + RT + CT in the year of 2006. now she is having a burning sensation at the lower left stomach which comes occasionally and increases at night, she is also feeling a pain behind the right ear.. could you please suggest me regarding this [/INST] Hi.Thanks for your query and concern for your Mother.She has already undergone Hemithyroidectomy and Operation +RT + CT for Cancer of the breast.The causes of pain in the left lower abdomen can be due to Colitis, secondaries of the cancer in the abdomen.I would advise CT scan of the abdomen and Colonoscopy to find out the actual reasons so that further treatment can be planned ..The cause of the pain behind the right ear can be again a lymph node due to secondary of the cancer or a muscle spam .. Clinical examination and FNAC will help to get a right diagnosis. </s>