My experience, starting about 5 days after she showed symptoms was more or less the same without the sinus pain. The fever broke after 2 days. The fatigue has been the primary issue and I have apparently lost about 5% of my body weight since quarantine began. Losing your sense of taste and smell seems to correlate to not having an appetite.
Our two young children ~7 years old are ok. One had sinus pain for day, but a warm compress helped with that. I assume they have it and we are all quarantined inside as a result.
Feel free to ask further questions.
It sounds for your cases like relatively "normal" flu-like symptoms apart from the intense sinus pain. I'm assuming it didn't "get into your chest" like some cases are describing. I've heard those accounts call it an absolutely harrowing experience. Sounds like you luckily avoided that?