Can i get ill from eating junk food?

the last week and a bit i havent really been bothered to cook and ive had quite alot of take aways, atleast 4 dominoes and 3 mcdonalds ! which i dont normally do, i normally have a healthy diet, but a couple days ago i got a sore throat and now i have a cold, i havent really been out and was wondering if it could do with the unhealthy food?