BALLATER, Scotland — An unusually jovial Prince Charles is reassuring fans that he is healthy and in good spirits, just in case anyone erroneously feared that he was unwell or had even passed away, according to reports. “Never felt better in my life,” the Prince of Wales maintained. “To be quite frank, I was just entertaining the idea of going for a brisk swim alongside my swans in the lake.” As of Friday morning, the heir to the British throne was said to be taking a rare unaccompanied walk through Aberdeenshire, home to one of his many estates, where he was half-hoping to be greeted by passersby with gasps and praise to God.