It sounds like a sitcom, but it’s Neil Kramer’s life. The Queens-based photographer has spent the past 10 months holed up in a small, two-bedroom, one-bathroom apartment with his 80-year-old mother — and his ex-wife. “It was supposed to be a few weeks,” he told The Post of the cringe-worthy living arrangement. “My mother was supposed to be in Florida, but that fell through and my ex-wife’s place in Los Angeles flooded, so they both came to New York.” Kramer has been posting the often-hilarious results of the “stressful” situation on his Instagram account, where he...