To get checked up by a doctor, go to the Dealing tab on your Sims phone, and select Doctors Appointment.
The effects of the illness will increase for each time they get sicker and includes weight loss, feeling of general discomfort, and nausea. If your Sim does not get a check up, their health will be deteriorating, and in a matter of days they will get even worse. The buff will not let them know what is up, but it will hint at getting checked up at a doctors office might be a good idea.
If a Sim gets lung cancer, they will feel sick and tired. When they smoke even more they will run the risk again but with a multiplied percentage chance of it being added, when they smoke even more they will run the risk again with an even higher multiplied percentage chance of it being added, and so on and so forth. When your Sim smokes a certain amount of cigarettes, they will run the risk of getting lung cancer. If your Sim is not under the influence while the buff is active, he or she might get a lot of negative debuffs until he or she smokes more tobacco. This buff lasts for 5 days and is refreshed every time your Sim smokes more tobacco. Sims who keeps on smoking a boatload of tobacco will eventually get an “Addicted to Nicotine” buff. I am sure your Sim will smoke like a responsible adult, but if that is not the case, here are some of the side effects that might occur.
