When you first start using BiPAP, you may feel uncomfortable. It may feel odd wearing a mask and feeling the flow of air. Over time, you should get used to it. If you feel like you really can't breathe while using BiPAP, talk with your doctor. They may need to adjust the pressure settings on your machine.
It's important not to eat or drink anything while using BiPAP. You might inhale food or liquid into your lungs if you do so. Your doctor may give you other instructions about the best way to use your machine.
If your health problem gets better, you may be able to start using less pressure on your BiPAP machine. Or you might be able to use the machine less often. Work with your care team to help get the best treatment.