If you're looking for a system to monitor seizures and alert people with epilepsy, Empatica has a more developed option. Its EpiMonitor system is geared specifically for epilepsy monitoring and seizure detection and uses wearables like its EmbracePlus that are designed to be both comfortable and medically useful. The devices record electrodermal activity, photoplethysmogram, accelerometer and gyroscope data, giving you a constant and detailed view of your health.
Another interesting project is EMOTIV, which makes EEG hardware and software for gathering and interpreting brainwave data. It's more geared for personal development and scientific research, but its high-density saline and gel EEG head cap systems and AI-based EMOTIV Pro software could be used for seizure detection and monitoring, given the sophistication of its EEG headsets.
Though these options are geared more toward seizure detection, NuraLogix has AI-based health and wellness tools that use video cameras to gauge physiological and psychological states. Its DeepAffex technology can monitor vital signs like heart rate and breathing from 30-second video selfies, so it could be used to spot physiological changes that might indicate seizures.
If you're looking for a more general health help, Buoy and Leny offer AI-based health assistants that give you advice and analyze symptoms. Those services are more geared for general health advice and diagnosis, but they could help you get a better understanding of seizure symptoms and what to do next.