Melinda Messenger is “still shocked” by the reaction to her rocking grey hair. The 53-year-old former glamour model – who ditched her TV career almost a decade ago and now runs a successful psychotherapy business – caused a stir when she revealed she’d ditched the hair dye to sport her natural hair colour last year, and she said it changed what was meant to be a “freeing” experience to the complete opposite. She told Platinum magazine: “Yes, I was! I’m still shocked about it. I couldn’t understand why my hair colour was so significant, and people are still talking to me about it now. I was ast…