i had an appendectomy 11 days ago. i was just released from the hospital 2 days ago. i have been experiencing this horrendous pain, in my right side, up high, right below my breast, each time i breathe in deep. (which is about every 10-20 minutes) It feels like someone stabbing me, and i almost cry each time. it takes my breath, and makes me wince, and make a noise each time. it even wakes me up, and hurts worse upon waking. it feels as though, i am not getting enough oxygen... and during my 9day hospital stay, they had to put oxygen back on me several times, a couple times at level 4. the respiratory team worked with me, (asthma), inhalers, and an incentive spirometer, which i am still using. I also have Von Willebrand's disease. I just want to know that this pain, that feels like it is killing me... is normal... and what is it caused from?