Swelling can be caused by a few different things - upped sodium can be one. If you live in an area with a lot of weather changes, that might do it too. I know in my area, my knee and back are giving me fits because every week we've got a front blowing through!
I'm glad you are doing better! I would say watch your diet for a few days - if it goes away, great news! If it's still an issue after a few days, follow up with your doctor.
In my left leg/ foot. Idk if this is my anxiety wanting me to think something is wrong. I notice to that my pointer finger was a little swollen this morning also. Could that be the way I slept?