Fever, body ache, insomnia. Viral?

I had been completely medicine free for over 2 years. Then I suffered from mild fever and an upset stomach, I tried to brave through  it but eventually had to take lopamide for 2 days and then norflox 10 tabs over 5 days Along with electral constantly. It stabilized 3 days ago and I was feeling betterthen suddenly I have started getting a fever with body ache and also insomnia.the stomach seems fine but seems irritated. There was some stress on the eyes- which seemed like I haven't slept in ages and was a new symptom for me.. So sleep deprived and have been working so there is a lot of fatigue. I had to take 2 500 mg paracetamol at 5 and 7 am. Now at 1030 my temperature is 100.2 which feels similar to all night.