Some children can be fussy eaters, but for Shannon Doyle's family, limiting her children's food choices is a necessity.
The mum-of-three's youngest - aged five and two-and-a-half - have both been diagnosed with Mast Cell Activation Syndrome (MCAS) - a condition that occurs when the mast cells in your body release too much of a substance that causes allergy-like symptoms.
The two kids are severely allergic to almost all foods, causing them to break out in hives, with chronic pain and excessive sweating - and their rare illnesses have 'stumped' doctors.
