For the last two weeks my partner has been coughing more than usual. He's always had a cough because he's been a heavy smoker for years, but lately he's been coughing even more. He's been coughing throughout the day and having fits of coughing a few times each night, and he is all blocked up in his nose and chest, and his sinuses get more blocked when he has a fit of coughing. But he says it's not a cold, and he doesn't look like he has a cold anyway. He doesn't feel unwell at all.
Right now we are away on holiday, but his chronic coughing is worrying me. My ears hurting from the loudness and pitch of his coughing is one thing, but I'm more worried about what could be wrong with him. He's going to see a doctor if he's still coughing like this when we get home next week.
I'm hoping the coughing is some sort of a virus, or an allergy, or maybe his lungs trying to get rid of toxins in his lungs or something else not sinister, but I can't help assuming the worst. He actually hasn't been smoking for about two weeks, but I'm still spending our break worrying. He says not to worry, but I can't help it. Why oh why does smoking have to exist among humans? 
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Female