have you taken your temperature or are you strictly going on how you feel? If you're going strictly on how you feel, you really need to take your temperature with a reliable thermometer and keep track of what it is, whether it goes down with medication (paracetamol), etc.
If, however, you have been taking your temperature and it's consistently been elevated, you probably should make an appointment with your doctor. A fever that lasts 7 days definitely warrants being checked into.
I hope you feel better soon.
Thank you. Unfortunately I don't have a temp meter right now but I do feel a low grade fever. If I don't feel better tomorrow, I'll go to the doctor.