Well done for giving up! you shoud be proud of yourself! you seem very positive therefore you are in a strong position to continue to not smoke.
as for your question, its not quite the same reason, but my friend has recently quit smoking after having her tonsils out! obviously suffering some discomfort, she didnt even try to smoke following the op or during post-op recovery. its been a while now and she has not smoked, i'm so proud of her!
for you, having a cold has helped you quit, but i know a few people who get colds and still smoke, i even know one person who thinks it helps numb her throat to ease pain. NRT is extremely useful when used correctly, but of course, willpower is required, which you obviously have. so stay postive, you can do this!! best of luck xx