What condition am I suffering from?

Patient: Hi. Roughly 3 months ago, I suffered from vertigo. Since then, I have been feeling tired easily and also nausea that seems to get worse at night. On top of that, I am experiencing chest pain that worsens when I am breathing and I have lost about 5kg. Just yesterday, I found some blood in my stools… What kind of condition am I suffering from?

Doctor: