Hi My daughter is 26 years old and breastfeeding her fourth child. She has been having headache like a heavy feeling on the top of her head. She has a lot of pressure in her neck at the base of her head. She has been extremely dizzy off and on. She was dizzy for two whole days last week and is again now. If she hold her head completely straight ahead, she is not dizzy. When she is dizzy, she has thrown up or nearly throws up. She did see a chiropractor last week who thought it was from the strain of nursing her chunky boy. He adjusted her and she did feel some relief. She has tried increasing her water intake and that didn t seem to help.