So I started my first batch yesterday. When I awoke I saw what I believe to be yeast in the airlock and all up in the neck of the bottle. Should I shake the bottle to redistribute what I believe is yeast? Or should I leave it be? I will upload a photo of it here. I see small bubbles traveling up the sides of the bottle so I believe it to be fermenting but I'm very new to this so I need some advice. Thanks!