"I was upset and I was angry and I was terrified," News.com.au quoted her, as saying.
"I thought, `Well, this is quite unbelievable.' I thought, `Is this really happening?'
"Was I thinking, `That's it, I'm going to fall off my perch'? Oh yes. Yeah, yeah, yeah," she said.
However, Minogue added that in spite of her fears she never thought about giving up her pop career.
"I didn't think that. But I've already had visions about the next tour. Touring is the ultimate for me. Now, doing photo sessions, videos, I'm not as excited," she said.
"My patience has gone down. I think it's about rationing my energy," she added.