I've just completed my last cycle of 4 x tax,for IDC grade 2 with one positive node. I saw my consultant two weeks ago as I was having some discomfort in my ribs (same side as bc), I had an ultrasound which was fine, and various blood tests done.I have just been told that my tumour marker ca 15-3 is 29.5. My consultant says he isn't concerned but wants to repeat the test in 2 months time. This is all via email, and I am still wating to speak to him. When originally diagnosed in early June this marker was 16, so has nearly doubled. I am beside myself with worry, surely tumour markers would go down not up on chemo (if it was working)? Looking for some advice please, if anyone has experienced anything similar. Thanks Michelle xx