Hair turning grey

Hi I have finished wk 3 of a 12 week cycle of taxol.While I haven't noticed any hair thinning yet my hair is turning grey rapidly . Three weeks ago when I had my hair clipped short I had not one grey hair . Today my husband and I both noticed the sides are full of grey hair . My question was going to be is this normal but then I think none of this is " normal " and it seems everyone is effected differently