I just came back from the beach. my ankles are swollen and my legs are starting to tingle?

Too much salt?: It is common to have some ankle swelling in warm weather especially if you have had a large salt intake. Did you eat salty foods while you were at the beach? Do you have a rash on your legs? If so you could have been exposed to something causing rash and swelling. I would avoid salt, elevate legs and seek medical care if condition does not resolve in a few days.