The Grey's Anatomy star revealed during her appearance on last night's edition of Friday Night with Jonathan Ross that, as the couple didn't live together before their 2007 marriage, she struggled to adjust to her rocker husband's messy lifestyle.
"Those first years of marriage are hard because you're trying to get used to the fact that this person will always be around," she confessed. "I'm a little OCD and I like things the way I like them, so I clinged to the last few months of that when we were dating."
"We got married and I felt like throwing myself off a cliff! I love him, he's great, but he does leave c**p everywhere."
Heigl recently expressed her desire to give a sibling to the couple's 9-month-old adopted daughter, Naleigh.