I was about to post similar! I was down with a migraine-type (seeing white flashes, not able to see clearly, splitting persistent headache) headache for the past two days. Sore achy throat for the past 3 weeks (approx). No muscle pain and feeling generally ok, but not a drop of energy, no energy at all, just drained. No cough, fever, diarrhoea. Slightly tight chest, but I'm not feeling this all the time, worse in evenings or when I lie flat. Breathing ok, but I'm unable to do a deep 'full' breath, if that makes sense. Although not suffocating by any means. Dizziness and blackouts when I stand up (this passes in seconds).
I used to have migraines in my teens-early 20s. My mum and grandma also did, but my last migraine was approx 12 or so years ago (knocks on wood).
I do have hay fever, but I feel it hasn't started for me yet, as my symptoms are blocked nose, teary itchy eyes and continuous sneezing - none of which is happening now.
I don't mean to sound insensitive given the situation, but I'm completely calm, not worried, no anxiety of any kind, no panic, so my symptoms cannot be attributed to that.
I would write it down to a bog standard cold, probably. BUT I had quite a few of those in my life and whatever happens, I always, ALWAYS have a blocked runny nose, every single time. Not now, though, nose is clear.
All we can do is wonder, I guess.