Strictly Come Dancing's Amy Dowden has provided a brave update as her fifth round of chemotherapy gets underway, amid her breast cancer battle.Taking to Instagram, Amy posted a mirror selfie as she held up the number five, confirming that she is about to face a fresh round of treatment.The 33 year old looked comfy as she wore a pink hoodie with black tracksuit bottoms. In the snap, Amy is pictured connected to a drip as she appeared to be remaining positive as she had a smile on her face.