Okay, so I know you're supposed to get dizzy and emotional in camel. The dizzy happens often - the emotional component is infrequent. For the last few days, though, I've gotten so dizzy that I come close to losing consciousness. Actually, I collapsed backwards yesterday in second set and hit my head pretty hard.
It panics me as it's happening. And when I come out I'm so disoriented I can barely move for a few seconds. I've been paying attention to my breathing. It's good, even, and calm. And then, suddenly, the dark edges collapse in and I can't see the back wall anymore. I can't see anything. I can't feel my arms or head and I know if I stay in the pose, I'll actually pass out.
I have low blood pressure. I've been a fainter all my life. I know when it's about to happen. I've been very close to losing consciousness several times in the last few days. It's really only in camel, though. Every other pose is fine.
I've never had trouble with camel before. Possibly I'm hitting some kind of wall that I need to break through. Maybe I'm blocking something emotional that's fucking with me. I don't know. All I know is that it's kind of irritating.
I know I have to be patient and take my practice as it is every day. I'm aware that continuing to do the work will finally get me where I need to be, but sweet Jesus and ice cream, man! It's always a bastard when these things pop up so suddenly.
Note to self: work on your patience and letting go of expectation.

I'm sure you're right---that you're just working through something. And that part of that "something" might be your patience and your expectations. One of my favorite sayings from a favorite teacher is: "Everything you are feeling is right, normal, good. Just relax and send the breath to where it hurts."
That phrase is on repeat in my head, the moment I come up out of camel.