Clinton says she got dizzy but didn't pass out

Hillary Clinton says she got dizzy but didn't lose consciousness when she stumbled on the way out of the 9/11 memorial Sunday.

The Democratic presidential candidate said in an interview on CNN's "Anderson Cooper 360" that she felt dizzy and "did lose my balance," while waiting for the motorcade. But she felt immediately better after getting into her air-conditioned vehicle.

She said she didn't immediately disclose that she's been diagnosed with pneumonia because she "just didn't think it was going to be that big a deal."

Clinton said her doctor said to rest for five days, but she "didn't follow that very wise advice." She added that she'll be back on the campaign trail "in the next couple of days."