A 29-year-old became a new mom — and months later, caregiver to her dad with Alzheimer's. She's part of the growing 'sandwich generation.'

Rachael Piltch-Loeb's father showed symptoms of Alzheimer's shortly before her first son was born.

Rachael Piltch-Loeb

• Rachael Piltch-Loeb, 35, noticed signs of cognitive decline in her father after she gave birth.
• Her father was diagnosed with early-onset Alzheimer's at 58, when her son was a baby.
• Part of the "sandwich generation," Piltch-Loeb had to balance caretaking a child and a parent.

Rachael Piltch-Loeb was always excited for her dad to become a grandfather.