A Newbury woman is gearing up to run the London Marathon for the eighth time despite having suffered from multiple sclerosis for 27 years. Sue Bennet, 64, will be taking on the 26.2 mile challenge for charity MS-UK this weekend. But she will also be taking on her MS symptoms, which include fatigue and numbness in her limbs. She was diagnosed in 1997 when her daughter was two-years-old and son had just started secondary school. “I felt very low and envisaged a bleak future,” she said. “My confidence was non-existent, and I had terrible bilateral optic neuritis, an MS symptom which causes vision…