My body is in pain what to recommend to use and when i pump in and out air it hurt?

Question is vague: "Body is in pain" usually means body aches and has a variety of causes. In flu season, the flu is a common cause. Other possible causes include inflammatory conditions, excessive exercising, medication effects, non-influenza infections, etc... One's primary care doctor can examine to see what is happening, especially if there are symptoms when breathing.