I have really thick wavy hair but in fairly good condition and I try hard to use no 'cone/sulphate products and minimise hear styling. Over the past fortnight it has suddenly become dry and coarse feeling. The only new thing I've introduced is that having found an amazing hairspray in my M&S advent calendar & become a hairspray fan. The freebie ran out so I just bought a cheaper one from Boots. Could it be that? Surely hairspray can't do any harm, can it?! 