Whether or not bed bugs make you sick is a question that many doctors will be hard pressed to answer. For most individuals with normal immune systems, the only problems they are likely to face is itching, usually after they wake up in the morning when the bed bug bit them at night.
However, there are significant cases when this problem is more severe. There are some people who are allergic to the bites of bed bugs. This means that once bitten, they end up developing an immune reaction that involves the whole body. This could lead to potentially dangerous situations such as very low blood pressure, loss of consciousness and in the most extreme cases, death.
Such a scenario is usually made even worse when a large number of bed bugs bite the individual, thus causing an even more aggressive immune system reaction. Typically, these individuals usually suffer from other immune-based diseases such as asthma and hay fever.
Another health issue you might encounter if you have a bed bug infestation is the fact that it might involve the whole of your skin. People who do not have immune hyperactivity but who neglect their bed bug problems could end up having a large number of bed bugs feeding on them on a regular basis. This results in itchiness and warts on large areas of their skin. If the skin becomes broken because of itching, it could result in infection which would need antibiotics to treat.
In summary, though bed bugs are not automatically linked to illness, they can make you sick in some specific circumstances.