Without wishing to sound too obvious - dehydration? If you're dehydrated you should be very thirsty and you're also quite likely to feel dizzy. Try drinking several pints of pure water (not all at once mind, be sensible about it) and getting some rest. 

Bear in mind that if you're dehydrated and/or have been out in … Read more

Proteins are good, yes, but please don't be afraid of the fats! Fat gets a bad rap, and it's undeserved. It gets lumped in with sugar, and this is totally misguided. If you're wanting to feel full (satisfied) but not be putting on weight (or you want to lose weight) then cut out the carbs, … Read more

My answer to that would be STOP COUNTING CALORIES! Sorry to shout, but really - just don't do that to yourself! Look at the quality of what you're eating, and the food groups. High protein, high fat, low carbs. Cut out the refined sugars, grains and other heavy, starchy carbs, get plenty of fresh veggies … Read more

I'd second Kirstie's answer - diet and exercise for sure. One thing I'd differ on though is cutting out fats. Sugar definitely needs to go, refined sugars especially but, in my experience, fats are not the evil they're often made out to be. The problem is carbs. I've been eating a low carb, high protein, … Read more