Just for Kicks by Judy Dearborn Nill
Approx. 61,440 words.
Published on February 24, 2011.
Illness can't keep Petra Goodwyn down. Denying the iffy state of her remission from juvenile rheumatoid arthritis, she works against the clock to earn a black belt before the disease she's keeping secret can stop her. And before Chas, her hot martial arts instructor, hooks up with someone else.