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Rosie O'Donnell says she suffered heart attack last week

Rosie O'Donnell tweeted a link to her personal website Monday that gave details about a heart attack she says she suffered last week.

In a post titled "my heart attack" on Rosie.com, the comedian starts by saying it's a sunny Monday and she's happy to be alive. She goes on to describe events that started last Tuesday with helping an "enormous woman" out of her car in a parking lot in Nyack, N.Y.

O'Donnell says that a few hours after helping the woman she felt a pain in her chest and that both of her arms were sore. She thought she strained a muscle and went about her day, she writes. Later she became nauseous, hot and clammy and says she threw up.

O'Donnell says she looked up symptoms for women's heart attack on the Internet and took some aspirin. She did not call 911 and in her post cites a statistic: "50% of women having heart attacks never call 911, 200,000 women die of heart attacks every year in the US."

Related: O’Donnell’s heart attack: classic, for a woman

After a visit to a cardiologist the next day, O'Donnell says it's a miracle she was not one of the women who suffer a fatal heart attack. She says her LAD was 99 percent blocked and a stent was put in. (In the heart, the left coronary artery usually divides into two branches, known as the left anterior descending (LAD) and the circumflex (Cx) coronary arteries).

O'Donnell's rep Cindi Berger confirmed to NBC News that O'Donnell did write the post and that she's "now home and resting comfortably." People magazine reported that Berger said, "She is very, very lucky."

O'Donnell concludes her blog post by urging women to know the symptoms and to call 911. "save urself," she says.

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