The 19-year-old has been documenting her cancer battle in a series of YouTube vlogs.

Michael Strahans daughter Isabella is giving an update on her cancer treatment after spending several days in the hospital.

The latest video sees the teenager back in the hospital, after her first round of chemotherapy.

Isabella and Michael Strahan

Isabella and Michael Strahan.Isabella Strahan/YouTube; Paula Lobo/ABC via Getty

Ive just been getting a lot of fevers," she tells viewers.

“If you get a fever of 100.4 you have to come in.”

Isabella Strahan/YouTube; Paula Lobo/ABC via Getty

I catfished everyone, she jokes.

I got a fever of 102 and had to come back in.

So were trying to figure out whats wrong but no one can find out whats wrong.

She continues, This is the worst fever I think Ive had.

I feel like I can barely walk now.

Last month, Strahan opened up about his daughters cancer journeyduring aGood Morning Americasegment.

He also explained how documenting her treatment on YouTube has lifted Isabellas spirits significantly.