Early Omicron symptoms are different from Delta.

https://www.businessinsider.com/sore-throat-early-symptom-omicron-covid-variant-2022-1

I have read several posts from DUers wondering what Omicron symptoms are and just found this info.
Apparently Omicron starts with a very sore throat before anything else develops. The loss of smell is not a big deal with Omicron.

"Many of those new patients reported the same ailment: a dry, sore throat that caused sharp pain when they swallowed and seemed to appear before most other COVID-19 symptoms. Doctors in Norway, South Africa, and the UK have similarly identified a sore or scratchy throat as a distinguishing symptom of Omicron. At a December news briefing, Ryan Noach, CEO of Discovery Health, South Africa's largest private health insurer, said Omicron patients commonly report a scratchy throat first, followed by nasal congestion, dry cough, and body aches. Moreno, by contrast, said sore throat often "comes hand in hand with sinus congestion and headache."