Does anyone else recognize this? I'm severely ill except when I get my B12 protocol to work. When I crash (or return to my untreated state, rather) I feel like the blood vessels in my brain contract. Like they only let a trickle flow through. It's kind of a cold, numb feeling, a little like when an arm or a leg doesn't get enough blood. A while later I start peeing out everything I drink. Soon I have extreme sensory sensitivity which puts me in a downward spiral with less and less energy, towards complete vegetable, severely ill, can't talk to people or even go to the toilet. Increasing blood pressure helps a bit but far from enough. Anyone recognizes this? Is it lower cerebral blood flow? What can be done to increase it? One of the theories I've heard is that something (autoimmunity?) makes the larger vessels in the body dialate and that the vessels in the peripheral vessels contract to compensate. Can't say I notice the first part though.