According to the UK advice I have seen, body aches are a feature, though not mentioned in all the descriptions. It's obviously the case that all these symptoms can be experienced with other forms of flu. However, I have had 4 of the listed symptoms of Covid-19, at a time when it is obviously rife across the whole of London, as indicated by the fact that the hospitals are close to full of cases and a third of London Underground staff are now off, either sick or self-isolating due to contact with someone who has symptoms. Given this alignment of evidence, I am 90% confident I have had Covid-19. By the way, I have just spoken to a French friend in Grenoble who was taken into hospital for 2 days with it. She, like me, lost her sense of smell and taste for a week. None of this is proof of anything of course - only a +ve test would do that - but the weight of evidence is pretty strong.