University of Calgary Feb 10 2026 Edward (Ed) Waldner had no idea why he didn't feel well but he knew he didn't feel like himself. At 55-years of age he felt exhausted all the time. It didn't seem to matter how hard he had worked that day. He wondered if he had sleep apnea. He noticed his walking was off. His heels would drag now and again. One day, when his symptoms were worse than usual, he decided to go to the Emergency Department. "The doctor said I had a mass on my brain and needed to see