My Dad is in hospital currently - confirmed Covid.
What I can categorically tell you is that by the time he got the cough he was already a very very sick man and infection had already taken hold and started pneumonia in his lungs. In fact he only really "coughed" and started gasping for breath when he exerted himself ie got up and walked about. Sitting/lying he didn't cough at all and his breathing was just quiet, albeit shallow, breaths.
Initially it was a general feeling of being "unwell" that he couldn't quite articulate, that progressed to headaches and diarrhoea. From there extreme fatigue, and fever. He said he felt cold and shivery but the paramedics measured his temperature at well over 38.
We also believe DS had it several weeks ago (not had any contact with my Dad though) and his timeline of symptoms was almost identical just milder versions - general feeling of "unwell", upset stomach with loose stools but not proper diarrhoea, headache, body aches and then lastly, the cough when he walked around but non-existed sitting still!!
Someone asked about people having a cough/tight chest but nothing else - yes I did for around 3/4 days at the same time DS had symptoms, again made worse by walking around etc. I felt a bit tired at the sane time but that's it.
So, Dad confirmed, DS not but sane symptoms so probably, me - who knows!!