So, I'm noticing for about the third year in a row now I'm having this issue every year around winter and it goes away as the weather warms back up. Basically I get dandruff which is not normal for me and on top of that my hair gets super greasy. Normally I only wash it every other day, but during winter I have to wash it every day or look like a grease ball. Even if I wash it every day though I still get the dandruff. Again this only lasts through the cold months and goes away when it warms up. Any suggestions?