On Thursday's Good Morning America, Michael Strahan

NFL player and GMA anchor, shared that his teenage daughter has recently been diagnosed with medulloblastoma,

Despite the personal nature of the situation, Strahan expressed pride in his daughter Isabella's strength

Isabella, a 19-year-old USC student, chose to share her own story with GMA's Robin Roberts

In September, she started experiencing severe headaches, nausea, and difficulty walking,

initially attributing it to vertigo. However, by late October, she began vomiting blood,

leading her to seek medical attention, accompanied by her father

She texted her twin sister Sophia, who informed the rest of the family

Michael Strahan then took her to the doctor