Thanks @kariulrich! My feelings are a little on the fence at the moment. One the one hand, I’m elated to finally be getting some answers as to what’s causing quite a few of my most concerning symptoms. On the other hand, I’m quite concerned that the medical approach up to this point has failed. At this point, we’re grasping at straws. If it doesn’t start working quickly, the only other option is to go along with the shunt placement. Invasive brain surgery is not my idea of a good time. 🙁 How are you fairing with your headaches? Other than oxygen, have you found anything that lends relief?