Hey NifNif ๐
I found that my headaches were as a result of lack of fluids. It is vitally important to keep your fluid intake high during your weight loss journey.
Water is your friend, be it still or fizzy (my favourite) and you should try and drink as much of the recommended 8 glasses if you can ๐
For me fizzy water staves off any hunger I may have, I can easily get through 3 or so litres of water a day and I feel terrible if I dont drink enough fluids.
If you arent a fan of water then try zero calorie drinks; Coke Zero, Pepsi Max etc. Not as good as water, but its a start!
Hope the headaches clear up soon. As a life long migraine sufferer I feel your pain!
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Re lunches. My office allows me access to a microwave and a sink to wash my stuff up. I recently bought a Sistems microwave rice steamer and can now cook quinoa in 8 minutes thanks to my new favourite cooking toy!
I also have a fridge at work and bring in quark that I can flavour with anything i like to add to my quinoa.
Salads are an easy office option, buy a bag on the way into work or on the way home for then next day.