Vomiting blood

I ate a lot of greasy food last night, and I was vomiting up blood for ever it felt like, I was want to know what it could be, I'm thinking it's stomach ulcers but I'm no doctor.

go to the emergency now!

Ring an ambulance, and keep  a bucket of what you vomit up, to show them how much, you make have a stomach ulcer that is bleeding, left it could be serious.

Timothy...we are worried about you, how are you doing today?