Super swollen ankles.

Anyone else? I haven't walked that much in the past few days but yesterday I was sitting down and my toes felt funny. I looked down and SAUSAGES appeared from nowhere! I immediately elevated and today just woke up from a nap and they're a bit swollen again. Not nearly as large but almost painful. Any recommendations? I'm 37+2 and haven't had any other bad symptoms aside from daily heartburn.