A Roseburg woman lost control of her car Tuesday evening at the intersection of Stewart Parkway and Garden Valley Boulevard, striking another vehicle and crashing into a light pole. Tabitha Jones, 27, may have suffered a medical problem that caused her to cross a median and hit the pole outside a Walgreens store at about 8:10 p.m., police said. She also struck a car driven by Regina Singleton Hopper, 41, of Roseburg, police said. Jones and Hopper were both treated and released at Mercy Medical Center in Roseburg, a hospital spokeswoman said today. Several children who were passengers were also …