I've been faking having very bad migraines since I was a teenager to just chill out alone in the dark for a day or two a year
How did you start lying about migraines?
It started happening when I was watching a movie with my family where people were having severe migraines.
It's okay to want to have time alone, but its wrong to lie about an illness. Your family may be worried about you which can cause them uneeded stress. You should be honest with them about your true intentions instead of betraying their feelings about you.
Screw them, they always make me feel guitly for doing this. Why don't they just give me time alone when I'm sick without worrying about me. I'll just keep on lying since faking migraines makes my life easier.
It will be awkward, but you should tell them the truth. Or at least let them know you don't have migraines now. Tell them how much you need regular time alone, though, and hopefully you'll still get to have some.