Sandy Ryan says she was hospitalized just three weeks before winning the world title.
The Derby fighter claimed the vacant WBO welterweight crown April 22 in Wales.
Ryan took on Marie Pier Houle of Canada over 10 rounds at the Cardiff International Arena, exclusively live on DAZN, and secured the goods via an unanimous decision.
The fight came as part of the supporting cast to Joe Cordina’s successful mission to regain the vacant IBF world title at super-featherweight against Shavkat Rakhimov –– but it was close to being canned.
Ryan, 29, has thanked her trainer Clifton Mitchell for getting her through a tough period and revealed that she needed medical treatment before going on to clinch the belt with scorecards of 97-93, 98-92 and 99-91.
"I carried on and we got the world champion belt out of it," Ryan said when talking to BBC Radio Derby just days after the triumph.
"To become world champion you have to get through certain things and life can hit you. Things can happen and it's just how you deal with it.
“[A few] weeks ago I was in hospital –– I won't say the reasons –– and had to have few days off training.
“I didn't know if I would be well enough and fit enough to fight.”
Ryan winning global honors in the paid code comes just three fights after she lost her unbeaten record at the hands of Erica Anabella Farias last March in Nottingham.
And after rebuilding, the next stage for Ryan is to become the undisputed champion in the 147-pound weight category.
Jessica McCaskill holds the WBC, WBA and IBO titles at welterweight and had previously held the IBF crown –– and Ryan has set her sights on the American.
"We want to be unified in this weight,” she added. “Jessica McCaskill has the other belts and that is what we are looking at. We want all the belts.”