Considering my smoking history, what risk do you think I have of developing lung disease/cancer in the future?

If you quit soon - and it doesn't sound like you have a full-blown smoking habit there yet, so you should be able to do this through using a variety of methods approved by your doctor, and with the support of friends - the damage done to your lungs and the rest of your body (nicotine and the other 2000 chemicals in tobacco smoke, damage a wide variety of things in your body, from your lungs to your liver and arteries) should completely repair itself within a few years. The longer you smoke, the more chances there are that something serious, like emphysema or cancer, will occur - it's like throwing a bunch of dice: the longer you throw them, the greater the chances that they will all come up as all ones or sixes. I'd strongly advise you not to continue gambling with your health and even your life: terminal illnesses like cancer don't usually show up until one has been smoking for over 10 years, but they can and sometimes do occur much earlier. Bottom line..... smoking, even just a bit, damages your health - but you haven't been smoking long, don';t smoke that much and are quite aware of the risks you are taking..... so the odds are that you will be able to quit successfully, and your body will recover rapidly. The longer you wait, the harder it will be to quit and the more damage there will be to repair.

The chance of you getting lung cancer all depends on you, certain people have more chance then other cause they have weaker amunsystems but the only way to decrease the chance of getting it is stop and if you don't have anything yet from smoking then no as long as you don't do anything else to damage your lungs then no you will probably no develop anything because of before smoking but you should stop and then go get a cat scan to make sure you don't already have something wrong with your lungs