Good Afternoon All, My Name Is James, And I Am

good afternoon all, my name is James, and i am a very active 40 yr old male who's is in relatively good health. I have always been one to walk or jog 3-4 miles a day. Lately in the last month, i have noticed that my ankles are swollen?? Doesn't matter if i just woke up, or if im just going to bed at the end of the day. They don't hurt, don't itch, but they are MUCH larger than normal. I'm a little worried if this is the start to something bigger, or if this is just one of the things of "getting older"? If you could please advise me if this is nothing to worry about, or something that i SHOULD worry about. Thank you very much for your time, and have blessed day.