Hi Joaf37,
I had an episode of vagus nerve syncope while on a cruise ship in 2019. At 11:30 pm I woke up feeling nauseous and needing to use the rest room. While on the toilet I had a very large bowel movement and felt like I was going to vomit. I passed out and fell off the toilet and hit my head in the tile floor. My husband heard me fall and called the ship’s medical office. In the ship’s medical clinic I was hooked up to an IV by a young nurse who didn’t speak English and didn’t know how to start an IV. The unknown fluid entered my vein very slowly and my forearm began to bulge. I started having hallucinations and uncontrolled movement of my legs similar to severe RLS. A Canadian Coast Guard ship was called and I was transferred to a hospital in Nanaimo, BC. The hospital removed the IV and did many tests on me between 1 am and 8 am… and diagnosed me with Vagal Syncope and told me to have my PCP check me when I returned home. They discharged me with a letter stating that I was safe to fly home to Southern Cal.
My PCP did similar tests when I returned home and did not find anything of concern.
I have had a couple of similar incidents since then when I have eaten too many high fat foods during the day. As long as I eat a low fat high fiber diet I seem to be fine.