They will starve but not die off completely. That’s why you need to sweep, vacuum, and steam the floors daily. If bed bugs don’t feed on you then they can’t lay eggs. Eventually the numbers will diminish. They might even consider relocating. If you share an apt, it would speed up the process if your housemates do the same thing. It may take months to fully get rid of them but at least you won’t be their meal if you follow me bed proofing instructions.
The size of bed bug bites varies with a number of different factors. Bed bugs inject an anti-coagulant along with their saliva when they pierce the skin to take a blood meal. This anti-coagulant is mostly responsible for how a person reacts to the bite and determines the size of the bug’s bite. Since people will have various sensitivities to the bed bug’s bite, the size of the bite will vary, as well. Another factor that influences the size of a bed bug reaction is the number of times a person is bitten. Bite reactions of people bitten many times are also variable, and their response may be either more or less intense as the number of bites increases.