text: Can you please extract important discussion associated with {unmet needs, safety, efficcay, treatment switch, quality of life} as list from Text, If you can't find please say NA?,   Text: What Neurological Disorders Cause Syncope (Long post)? This is for my mom so I will detail as best as I know. 64 years old, 5'6", 185lbs *now*. My mom was diagnosed with Her2+ breast cancer July of last year and immediately began intense chemo cocktail which included Herceptin. She finished in August of this year. During and after chemo she had frequent episodes of syncope. January she had a double mastectomy and had some lymph nodes removed. She saw an electrophysiologist and he did a tracking device on her for 2 weeks and found that she had frequent epsiodes of 4 or more seconds of her heart stopping. My understanding is that she was diagnosed with a level 2 heart block. After she got the pacemaker, we monitored and the pacemaker was not actually pacing for her at all. She wants to get it out (that is another story). After she got a pacemaker in September, she had her reconstruction in November. She had a very dangerous episode of syncope yesterday that put her life and other's lives at risk. But she has a pacemaker and no cardiological events ocurred at the time of the incident. My family friend is a psychiatrist and suggested this could be neurological. What neurological condition could this be? I am asking because my mom works in the medical field so using medicine as a tool to get her to the doctor has worked in the past