In August 2020, Mr. Prashant, a 50-year-old businessman, started experiencing weakness and pain in his limbs. "At first, I brushed it off as post-gym session fatigue, but the symptoms persisted and worsened with time," said Prashant. His ordeal began with these subtle symptoms, but it didn't end there. His journey took a more distressing turn as swelling in his face and difficulty eating and swallowing soon followed. Concerned, he sought medical help, visiting several doctors. However, none could pinpoint the issue. "I saw many doctors, and they didn't know what exactly was wrong," he recalled.