Is this just a cold?

Patient: Hi there, I haven’t been able to get a appointment at my local surgery as they are too busy. I have recently just got over (hopefully) a kidney infection. During this time, what I thought was a cold develop. This turned into a nasty cough and congested nose. For 3 weeks now I have still had this and it has shown no signs of improvement whatsoever. Last week I had swollen tonsils but they seem to have calmed down again now. I have also been having painful headaches every single day during this period too. I have been having early nights but I still feel like I haven’t slept. Do you know if this just a cold i’m struggling to get over or does it sound like something more?

Symptoms: Coughing, runny nose, congested nose, swollen throat, headaches, exhaustion