In 1995, Nolin starred as Neely Capshaw in the television series Baywatch. Later in the year, Nolin began modelling for the first time since her pregnancy for Maxim. In 1998, Nolin quit Baywatch and starred in her own TV show, Sheena, for Sony in 2000. In 2001, Nolin posed for the Christmas edition of Playboy after turning it down several times.
She did a music video with Billy Currington called "I Got A Feeling" that received a CMT Flame Worthy Award nomination for Best Celebrity Cameo.
She married Greg Fahlman on November 27, 1993, they have a son Spencer Michael born (June 3, 1997). In 2001, Nolin divorced Fahlman and married former NHLhockey player Cale Hulse in 2004. They have two children: son Hudson Lee Hulse (born 2006) and Stella Monroe Hulse (born 2008). Shortly after the birth of her first child, Nolin was misdiagnosed and treated for postnatal depression. She suffered greater symptoms during her second pregnancy, and then suffered arrhythmia during her third. A thyroxine level check within a blood test found a low level, and she was immediately diagnosed with Hashimoto's thyroiditis. Nolin now campaigns for regular thyroid gland checks and blood tests. Gena also blogs for Celebrity Baby Scoop. Her book, [Beautiful Inside & Out - Conquring thyroid disease with a Healthy, Happy, "Thyroid Sexy' Life] hit the charts landing her book at #1 on Amazon and Barnes & Noble Top 5 Health Books.