@biomedeng @wheelerma The neurologist I went to for headaches blamed them on ketamine. I said it must be powerful stuff for it to cause the headaches before I ever started it. He checked his charts again and realized that he had seen me a year before I started treatments. I am seeing a different neurologist now, one that has done his research. There are a lot of reports on ketamine that you can search and print out for your doctor to review. The problem is there aren't any full on clinical trials for ketamine because it isn't worth it for a generic drug. This means you have doctors that won't listen to the evidence of people who say it has worked for them. The nasal spray has been reviewed and is a "new" drug but it uses just one of the molecules of ketamine, not both like the IV so it may or may not help you. Still, it is covered by insurance where the IV isn't at this time so it is probably worth a shot. Best wishes you both find something that helps.