United Kingdom, Jan. 7 -- Jesy Nelson doesn't think she will ever "accept" her twins' devastating health condition.

The former Little Mix singer revealed earlier this week that her and fiance Zion Foster's seven-month-old twins Story and Ocean had been diagnosed with SMA1 (Spinal Muscular Atrophy) - the most severe form of the progressive muscle-wasting disease - and she admitted she is still "struggling" to come to terms with their needs and challenges.

Speaking on UK TV show This Morning, she grew emotional as she said: "My house looks like a hospital. My hallway is filled with medical stuff. It's crazy how you can go from one extreme to the next.

"Story is on a breathing machine at night because she's not strong enough to breathe by...