NASHUA — A Brookline woman is suing a Nashua tattoo shop because of a belly button piercing that allegedly went horribly awry. Kaitlin M. Brew, 20, said an employee at Tattoo America pierced much too deep, poking straight through to Brew's stomach. The injury, which went undiagnosed for more than two years, caused months of constant pain and eventually required exploratory surgery, Brew said. "It's not a pretty thing whatsoever, I have to admit," Brew said yesterday, describing her experience. A Brookline woman is suing Tattoo America, a Nashua tattoo and body-piercing shop, because of an injury allegedly inflicted by...