Democratic leaders are unsure whether they have enough votes to pass the health care legislation. A total of 216 votes are required in the House to pass the bill. That's the total number of Democrats who voted for the bill last year, but since then, some have backed off amid concern that supporting the controversial bill would hurt their chances in this year's mid-term election. Others cite cost issues while some liberals, such as Rep. Dennis Kucinich, D-Ohio, say it doesn't go far enough.
But Americans like Canfield don't know if they can wait.
"I went from feeling A-OK to really bad," Canfield told ABC News from the hospital.
Canfield said she knows she will be facing "a huge hospital bill" since she had to drop her individual health insurance from Anthem Blue Cross and Blue Shield of Ohio after its most recent premium increase.
Canfield told ABC News she was "just so amazed that a regular person from Medina, that the president read my letter and is mentioning my plight. When I wrote my letter I just wanted it to be counted in the numbers... of people who wanted the president to go for health reform. I never thought he'd read my letter."
ABC News' Kristina Wong and Huma Khan contributed to this report.