My lungs hurt or feel sore when I wake up?

Lungs do not have any pain receptors therefore they cannot hurt.....but.....any muscle surrounding that area can ache or hurt. The fact that you said you had bronchitis send off the little light bulb in my head that along with bronchitis usually comes the crazy coughing. When you cough, you use muscles that you don't normally use in everyday activities. Exercising especially with weights requires upper body strength...therefore...you are again probably using some muscles that you don't normally use in everyday activities. So most likely 1 of these 2 or both things are causing you to have achy muscles.