Emma was diagnosed with breast cancer just after her 40th birthday. She then underwent six rounds of chemotherapy, a lumpectomy and radiotherapy.
The cycles of chemotherapy - and other medication she had to take - had dramatic effects on her appetite.
Emma says: "I was prescribed steroids to take on the day before, the day of and the day after having chemo. I woke up at 2am after the first dose and ate several huge slices of cake. This continued for about 20 hours a day for three days during each cycle. My appetite was insatiable."
But the chemo also affected her sense of taste which "totally disappeared" on the second day after the first dose.
Apart from the three days of steroid treatment, Emma saw her appetite plummet during the rest of the treatment cycle.