I am part way through week 2 of my weight loss journey and woke this morning with an awful migraine. I am not on any specific diet but am counting calories via MFP. I have consciously tried to reduce my carb intake but have not totally eliminated them. Just wondering if restricting my calories could have caused the migraine. I do get migraines but very infrequently, maybe once every 6-9 months. Has anyone else suffered headaches as a side effect of weight loss?