If it's minor symptoms, which you describe, and it's not lasting for long then I would just treat it as you would any cold or flu.
Spend time in bed, take plenty of liquids (This doesn't just mean water. Fluids/Liquids can be anything. Soup is good too. Avoid soft drinks like cola), get some good rest (don't spend time on computers or reading. You could give yourself even worse headaches), try to eat some good proper food, make regular trips to the loo as needed, take proper painkiller medication as needed and ensure you follow proper dosages and instructions (If it says 3 a day, only take 3. If you forget how many you've had do not take any more. Better to be safe than sorry).
If it persists for much longer, then do go and see your doctor. If only to be given a prescription for some painkillers.
And if you do have unusual symptoms I recommend you do not go searching them up online.
There are so many common symptoms to numerous illnesses that it is very simple to mis-diagnose yourself and suddenly think you have some ultra-deadly virus or what not.
If you're not sure then ask your doctor.