For The Past Week, I've Had What Seems To Be

For the past week, I've had what seems to be a common flu, or since I just moved to uni couple weeks ago, it's the "Fresher's Flu". I've been coughing for the past week or two from my sore throat and it seems to have started hurting my lower back and abdomen. Along with the typical congested and runny nose, I've recently found my ears to be seemingly blocked/congested. Overall, I'm just worried that these are symptoms for something worse, especially given the possible meningitis threat warned about by the uni.