@luciekitty04,
Try washing your hair without shampoo and conditioner for a week or so. Just water.
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How often do you wash your hair now? try not to wash it more than 2x a week and with as little product as possible. If necessary, use a tiny tiny tiny bit of conditioner - never put it on your scalp, just from your ears down on your hair only. In a related way, do not put shampoo on your hair below your ears when you return to shampoo use. So apply shampoo from scalp to ears, conditioner from ears down. They'll move around to cover once you add a bit of water.
If reducing washing/stopping shampoo and conditioner doesn't help, get in to the salon to talk to your stylist. If you don't have a regular stylist, go in to see your doctor in a week or so.