I dyed my hair about 2-3 hours ago... Already my scalp is quite itchy and my head hurts- as if it s the beginning of a migraine. Also feeling a little dizzy. I bleached my hair only yesterday and put on a light grey dye this morning because I heard that it would counteract the orange and pink tinges. Within 3-4 weeks my hair has been dyed dark purple, 2 weeks after was bleached, 3 days after red, yesterday bleached (a week after the red) and today a slight grey tinge. I know that I ve dyed my hair too much recently but would that be enough to start a reaction? The itchiness is from my eyebrows all the way down to my back- which is odd as I have *very* short hair. I ve always been bored with hair colour too easily- so I ve always changed it frequently (for the last year. But not this frequently, admitted.) Should I be worried? Thank you.