Country songstress Carrie Underwood has revealed that at the beginning of her career she suffered from panic attacks because she couldn't get used to the constant and overwhelming attention.

Speaking in the June edition of Marie Claire magazine, the 'Blown Away' hitmaker explained that when she first rose to fame she was made to feel very nervous by the swarms of people that would surround her:

"At the beginning of my career, I used to have panic attacks. People were touching me, screaming -- it made me really nervous. In public, I just get nervous."

"It’s a physical reaction, feeling like the walls are closing in. The fans are great. It’s not their fault. I don’t ever want to come across as ungrateful. But on my end, it is hard for me to process. Because I am still just me."

She also opened up about her childhood and family life, admitting that she was never very close to her siblings as they were significantly older than her: "I'm not a mushy person at all. We were never a huggy family. Or a ''let's talk it out'' family. Technically I have siblings but they are quite a bit older than me -- I was the accident -- so I have the only-child syndrome going on."

"I'm a little more selfish, a little more independent, a little closed. I do wish I were softer. I wish I were able to form relationships better. But hey, I mean...I'm not a sociopath."