Tanya

its hard to make a diagnosis with your post

but the shoulder tip pain is more than likely referred pain from your abdomen or chest

it could be a variety of things

are you short of breath, feeling fatigued or dizzy
as it may be a lower lobe lung infection (pneumonia)

if it hurts in an inhalation it sounds like it could be an inflammation of the pleura (the membrane around your lungs) causing a friction rub. On auscultation with a stethocsope you can hear a squeeking as you inhale

hope you feel better soon

x