Washington, July 25 (ANI): Author JK Rowling admits that she felt "terrible" for the first two days after completing the seventh and final Harry Potter book. After that, it all got a bit easier.

Rowling finished writing the book on 11, January this year, and made announced it to the world by scrawling it on a bust in her hotel room at the Balmoral Hotel in Edinburgh on February 1.

And now that the Harry Potter and the Deathly Hallows has been released, Rowling opens up about her emotions after completing the series that has captured the world for about a decade.

"The first two days were terrible. I was incredibly low," People magazine quoted her, telling Meredith Vieira for a series of interviews to air on NBC's Today show to be aired later this week.

"I didn't cry as I was writing, but when I finished writing, I had enormous explosion of emotion, and I cried and cried and cried," she says.

Rowling also revealed that the Harry Potter series are extremely "wrapped up" with events that were going on in her life over that period of time.

"I think what is probably hard for people to imagine is how wrapped up the 17 years' work is with what was going on in my life at the time. So it all merges into one," she says.

"I was mourning the loss of this world that I had written for so long and loved so much. I was also mourning the retreat it had been from ordinary life, which it has been. And it forced me to look back at 17 years of my life and remember things. And it was very linked to my mother dying, which happened. ... This big long passage from my life is now rounded off," she said.

And there certainly have been a lot of events in Rowling's life in those 17 years.

"I went through the birth of three children. I went through two serious bereavements. Breakup of a marriage. And then lots of happy memories, you know? ... But, you know, it threw me back into all that," she says.

Her blues lasted for exactly a week, after which, she says: "I woke up on kind of Day Eight and felt actually quite light - light hearted and thought, I can write whatever I like. And the pressure's off".

"And it's not as though Harry's gone-gone from my life, because he'll always be in my life," she adds.

The final Harry Potter book was released on July 21, and soon became the fastest selling book in history. (ANI)