There are pretty graphic descriptions around of the attacks by the beast, but I don't really see anything about shadows. I am wondering what they are, and if I am indeed having them, or perhaps it's not something else.

From between late December to late May, I will have daily headaches. Usually it's a 30 minute period of low to mild pain on the left side of my head (where the beast attacks) that repeats itself several times throughout the day. Every time it happens in the evening, it's enough to make me wonder if the beast is about to come on strong and hard, or if it's just growling at me.

There doesn't seem to be any rhythm or trigger to them. In fact I have one right now as I type this.

Is this somewhat like what your shadows are?

I'm with Jason. I regard them as: have had  a major muscle strain/injury, has been healing nicely but--some low level, residual irritation which, while not restrictive, just annoys.

My experience matches that reported by Maz. I just treat them as a low level CH and will deal with them accordingly, which could be an energy drink for relatively mild ones or oxygen for the more annoying ones.

My shadows never last all day but they may come and go for 15 minutes or so. My shadows start at the back of the head where the trigeminal nerve root is, also the top of my head..both on my cluster side, my eye may water a little. When I am not in cycle...never get them but when a cycle is trying to rear it ugly head, I may get 1 or 2 a day and go a week without. If you have O2...use it.

Judy

My shadows came with twitches (eye) which is common in
a lot of folk. Other wise I classed them as a rebound Headache. Also a shadow can be a warning sign that the
beast is just around the corner.

Hoppy.

When I have shadows that just hang on and hang on I take a shot of 5 Hour Energy drink and it'll be gone in about 7 minutes.

My main cycle, as I will call it, has been over now for about a month but have had shadows ever since.  They are definitely getting more mild so hoping the full cycle is almost gone.  They are a slight ping or pang at the top of my head on the cluster side, sometimes a little pressure in the eye or a teary eye.  .  In answer to some of the questions above, mine sometimes hang around all day or just momentary shots. The wacky weather doesn't help as when I am around a cycle I feel I am more sensitive to mild sinus headaches due to pressure changes.  Hope this helps and I did not get too wordy.   But even with some slight shadowing I threw in the towel and went on the roller coasters at great adventure this weekend with my kids.  No I'll effects, except for the food poisoning from the food truck festival, but that is another post.  Healthy days to all.

Hi Colin,
A little bit worried for you over here in the West. I have
my fingers x the beast isn't lurking. Since I've been on
the regime Spring 2012 not a sign of the beast.

Best, Hoppy.