Blood volume. If you are tired and no blood is able to get to your body and you heart keeps going faster your heart is probably going to fail.
Answer:
Abortion is killing babies while they are still in their mothers
Explanation:
Use a lot of shamoo i think
Best thing to do would be to stop any physical activity and drink water or milk. lay down and put a cold wet towel over your head. it cools the whole body down. eventually you fall asleep and most of the times after all that happens your headache is typically gone once awoken.