Just found out today lung cancer

I had my gallbladder out on Tuesday and had a tight chest yesterday so went for what I thought was a routine CT scan today thinking I might have a clot. I’m devastated to be told I’ve got 1cm lung cancer. Doc in the emergency dept told me and now has sent me home with no info - they said someone would phone on Monday. I’m just totally gobsmacked. I’m 50 never smoked - active and go the gym. Am I going to die??