Headaches

Hi all.

Can somebody please outline their experience with headaches during the
induction phase of low carb eating? I have just began my regime and I
figure yesterday my carb intake was about 18g. Near the end of the day
before bed I had a dull headache that I woke up with as well. I took
some advil and ate and it is better, but still there.

I have read that headaches are common in the beginning days but do go
away. Has this been a common experience?

I did expect them as all of my life when I have not had the time to eat
for prelonged period of time, I got headaches. I now see that likely
they are tied to blood sugar / carbohydrate intake.

I know headaches can also be attributed to lack of water consumption.
This was definitely not my problem - I drank a lot of water yesterday.

Just hoping they don't last for long. I am not stopping.