Yes, the stress of family, ritual, traveling all wear me out. Luckily, the fluorescent lights aren't too much a problem for me, so shopping isn't difficult. (I do my best to avoid crowds, shop early in the day. That's just preference, though!)
I agree though, for me the sunny hot summer days are worst. I end up cloistered inside, or so uncomfortably warm outside I could scream.
Though I wear hats and long sleeves, slacks, year round, in those steamy sunny hot days, the full covering becomes a bit claustrophobic. Can't imagine wearing a bourka - but sometimes feel I might as well be!
I keep threatening to move even further north. Minneapolis has a nice sound. Or maybe Barrow Alaska...
~"I find hope in the darkest of days, and focus in the brightest. I do not judge the universe." (Dalai Lama)