I am female aged 41, 1.70m tall and weight 96Kg. I have breast cancer and have just finished chemotherapy. I was given 3 x 3wk cycles of docetaxal and a trial drug called artemis and then 3 x 3wk cycles of FEC, with one of those weeks with the artemis trial drug. I am due to have a lumpectomy in a couple of weeks, which I should have had earlier this month, but a CT scan showed that I developed a blood clot in my right lung during chemotherapy. I am on the blood thinner enoxaparin sodium. Earlier this week, I noticed a lump on my head which was not there before, and I have also been getting headaches. The lump is not sensitive to touch although the top of my head has been tender since I lost all of my hair around the 5 cycle, which is now growing back. Is this something that I should go back to my cancer health care nurse/oncologist about or is it just a lump with normal headaches given what I have been through recently?