...I would keep watching that upper radiator hose. It should not be misting out anywhere. It's possible that you have a very small opening there, that it's letting coolant escape, and you got to the point where the coolant was too low, THEN you overheated.
Change that radiator hose so that coolant doesn't escape at all. You might have to drain a little coolant to do the job, then refill.
Or take it to a shop and see what they say. Tell them about the upper rad hose to start. I wouldn't take any chances on it getting any worse.