Stomach virus two days ago. Still can't eat. Food makes me nauseous and constantly tired?

Not recovered. After a stomach virus, the gut lining is destroyed and doesn't absorb and process food normally. Plus the bacteria that normally grows in the gut is altered and food isn't digested properly. Taking a probiotic, and keeping things simple for a few days can help tremendously. If things don't improve, see your doc to discuss it. Some can become mildly lactose intolerant for a few days.
See doctor. This kind of personal medical situation really should be dealt with by seeing you doctor. It can vary from being self-limited slot to resolve viral infection to something more serious and would seek medical attention.