I'm a sleep technologist by trauning and profession for the last 18+. I wish all our patients were so much aware about their conditions and our doctors had the opportunity to spend enough time with those that would.
do you know, by any chance, about the connection between eating vegetables green and onions seem to trigger sleeplessness? I think it's a gut issue, but I can't find any doctor that knew this yet
Are there any signs of gastroesophageal reflux? Like burping, or feeling hearburn, maybe even non-cardial chest pain? If so, I would suggest consulting with a gastroenterologist before visiting a sleep laboratory. GERD (gastroesophageal reflux disease) is often associated with late sleep on-set phenomena and with fragmented sleep circle pattern due to central apneas taking place when the acidic reflux enters the esophagus.
If you already have ben checked by a gastroenterologist (and/or are under treatment) I would suggest visiting a sleep laboratory. They would perform a sleep study and will be able to better assess your sleep patterns.