Even Kareim Nurdeen's family doesn't know he's homeless. His two daughters tell him to come to them if he needs anything, but he is determined not to let them see him like this.

Diagnosed with schizophrenia years ago, Nurdeen stopped taking the medication for his condition because it was too expensive. He is unable to work and has fallen in and out of homelessness for the last five years.

"It's not easy for me ... there are times when I walk on the streets and I'm thinking something's crawling on me, or I'm hearing my mother's voice but she's been dead for years," he said. "All I can do is try to isolate myself."

He recently became homeless after discovering he had been renting a room from someone who didn't actually own the building -- it was really an abandoned house. When the house was taken over by the city a couple months ago, they were both kicked out on the street.

Nurdeen has been staying at Joseph's House for the past week after another shelter ran out of funding and was forced to shut down.

"I pray, I pray, and I think 'I'm a good guy' ... so sometimes I ask, 'Why me?,'" he said.