Dizzy, Exhausted, Headachey, Confused?!

1250 calories? Good lord no wonder you feel like crap. So did these people.

http://www.myfitnesspal.com/topics/show/419136-what-am-i-doing-wrong
http://www.myfitnesspal.com/topics/show/419393-need-serious-help-please
http://www.myfitnesspal.com/topics/show/420759-gaining-weight-on-a-low-carb-diet-please-help
http://www.myfitnesspal.com/topics/show/421412-so-fed-up-there-has-to-be-an-easier-way
http://www.myfitnesspal.com/topics/show/446248-why-am-i-gaining-weight
http://www.myfitnesspal.com/topics/show/447513-disillusioned
http://www.myfitnesspal.com/topics/show/448803-not-loosing-weight-or-inches
http://www.myfitnesspal.com/topics/show/454374-gaining-with-scrict-diet-and-workouts
http://www.myfitnesspal.com/topics/show/455392-no-results-at-all-despair
http://www.myfitnesspal.com/topics/show/457566-why-cant-i-loose-weight-or-inches
http://www.myfitnesspal.com/topics/show/457037-feeling-disheartened
http://www.myfitnesspal.com/topics/show/467001-why-1200-c-a-day-and-still-no-weight-loss
http://www.myfitnesspal.com/topics/show/480698-assistance-please-this-is-getting-ridiculous
http://www.myfitnesspal.com/topics/show/480186-tiredness
http://www.myfitnesspal.com/topics/show/487729-the-scale-wont-move
http://www.myfitnesspal.com/topics/show/493331-i-need-some-straight-up-advice-on-this-dieting
http://www.myfitnesspal.com/topics/show/503342-mfp-lied-help
http://www.myfitnesspal.com/topics/show/509836-i-can-t-seem-to-lose-any-weight
http://www.myfitnesspal.com/topics/show/517635-what-is-wrong-with-me
http://www.myfitnesspal.com/topics/show/526497-1000cal-day-diet-daily-work-out-not-losing
http://www.myfitnesspal.com/topics/show/552142-giving-up
http://www.myfitnesspal.com/topics/show/557832-why-am-i-not-loosing-weight-help-im-doing-everything-i
http://www.myfitnesspal.com/topics/show/585081-help-working-out-and-eating-1200-calories-no-change
http://www.myfitnesspal.com/topics/show/589043-sick-of-trying-with-no-results
http://www.myfitnesspal.com/topics/show/665625-could-someone-look-at-my-logs
http://www.myfitnesspal.com/topics/show/668039-why-haven-t-i-lost-weight-in-2-weeks
http://www.myfitnesspal.com/topics/show/680195-helppppp
http://www.myfitnesspal.com/topics/show/705854-hair-loss
http://www.myfitnesspal.com/topics/show/713154-900-calories-a-day
http://www.myfitnesspal.com/topics/show/713967-not-seeing-any-progress
http://www.myfitnesspal.com/topics/show/721909-1200-every-day-and-no-change-demotivated-completely
http://www.myfitnesspal.com/topics/show/739340-1200cal-daily-for-3-weeks-and-havent-lost-a-single-pound
http://www.myfitnesspal.com/topics/show/854231-calorie-problem
http://www.myfitnesspal.com/topics/show/854236-stuck-fat
http://www.myfitnesspal.com/topics/show/867360-i-m-scared
http://www.myfitnesspal.com/topics/show/873449-need-advice
http://www.myfitnesspal.com/topics/show/890176-not-losing-with-1200-calorie-plan
http://www.myfitnesspal.com/topics/show/892991-4-weeks-dieting-and-haven-t-lost-1-pound
http://www.myfitnesspal.com/topics/show/901715-anybody-busting-their-butts-and-seeing-no-results
http://www.myfitnesspal.com/topics/show/905033-why-am-i-not-losing
http://www.myfitnesspal.com/topics/show/905493-daily-600-net-calories-no-weight-lost-what-s-wrong

http://www.myfitnesspal.com/topics/show/919346-still-think-your-1200-or-less-diet-is-a-good-idea

I recommend what Sarauk said. High deficit diets are not beneficial when you have PCOS. A friend of mine went through the same thing and suppressed her metabolism to nearly nill eating about 1200 for a while...then 1000...went down as far as 800 until she started listening to me. Now she's losing at about 1600.

I recommend you check out the following link:
http://www.myfitnesspal.com/topics/show/952996-level-obstacles-lose-weight-target-fat-easy
With that being said keep in mind that you have PCOS so your metabolism will be suppresed from these numbers. That being said, from the experience I've had with a few friends in person, and many people online, their metabolisms weren't nearly as suppressed as they thought.

have a deload week every three weeks. sounds like you need one now. (deload=1/2 your workout with 1/2 the resistance)

cool down your cns, because it is shot.

plus up the calories. dont break down you metabolism.