The beast visited me too on Christmas. I just went and hid in one of my Great Aunt's back rooms. Sorry to hear the bastard visited you too!
I have a bit of the opposite problem with my family. They know how severe this disease is. They know how much I'm hurting. On top of it, they do worry that I might kill myself because of it. I wish if nothing else, I'd kept the suicide headache part to myself. My Aunt is mentally ill, and she is now freaking out that without a car to get me to the ER during as severe hit I might end up killing myself. :/ So for me it's more of a curse... It hurts them so much worse knowing that it breaks ME... Expecially with all that I've been through already... It's tearing them all apart.
I've never really gotten the chance to hide my hits. If someone hears me scream, it's generally something they HAVE to check out. (The docs wouldn't have it any other way, I'm too accident prone.)
So, usually at least once during a severe hit, every household member has to see why I'm screaming. My room is RIGHT by the bathroom.
On top of that, after hurricane Ike hit and we had to evacuate, I was in a house, then a HOTEL full of people. No way to go into any room without someone being there.
The nice thing? All of the kids just assumed that whatever I was doing was normal. It didn't weird them out any. It really doesn't, they just get concerned and want reassurance that it WILL get better. They also wouldn't bother me during one. I'm babysitting on a daily basis for my cousin, and both of the kids, a 1 year old, and a 4 year old, seem to have picked up not to mess with me during it... Now after one, when I go to try to sleep from exhaustion, I'm of course fair game.
So, since I don't like to be touched during hits, my Mom mentioned this to my neurologist... How if someone goes to comfort me I cringe away.
His response was "I wouldn't want to be touched either!"

My pets also have gotten to where they don't mess with me, but the really WEIRD thing? Is one of my dogs will whine if she notices my left eye is shut. Let's say I pass through the room to go get an energy drink... The dog will immidiately start whining, before anyone else has saw that I have a cluster. One of my friends suggested I may be putting off a scent that they're picking up on that warns them not to mess with me.
I had a seizure dog when I had seizures, she was untrained, but would freak out before one, then put her body across mine during one. Dogs being able to smell something like that is nothing new to me. I think in this case though it's just that she notices my left eye closed or me grabbing my head and knows what it means.
Mystina
ETA: Sanna, the energy drinks being medicine, I told that to little Jose. He saw me chugging one during a cluster and asked what it was. I told him it was a drink for big people, but it helped my eye to feel better.
He informed me he did not want to be a big person... XD