I’m sorry. I can say I feel what you are going through. My headaches have mind of their own too, comes as they please. It started with going to the gym but now I get them anytime, doesn’t matter if it strenuous or not. My neurologist gave me Zoloft as a remedy now, which is making other things worse. Waiting for my surgeon to call back. Who knows when he will call. Your herniation seems larger than mine, mine is 6 mm now but now sure if it will get worse. I don’t get nausea…yet. But it will make the condition worse. I hope you can find the correct doctor and try calling Mayo in AZ. I am in AZ and trying to contact dr. Naresh Patel who is a neuro surgeon here at Mayo. See if you can schedule an appointment with him.