Hello..i Woke Up One Mourning With A Swollen Face On

Hello..i woke up one mourning with a swollen face on oneside. It's bin swollen for a couple months now around the whole side of my left cheek,and my eye is getting some wrinkles from the swollen too. But I have no other symptons pain or allergy's besides this. And the swollen has gone down some since the first few days. But it is still very noticeable. I am wondering maybe cause I bin sleeping on this side of my face and also I have not bin sleeping with a pillow for a while either cause i've bin sleeping better without it. And Could it also be cause I have bin taking a supplement that has creatine monohydrate? Or maybe all of these things together? And what about not enough potassium?