Need Suggestion

I’m a 27-year-old male. I used to smoke and drink alcohol regularly. About four months ago, after heavy drinking, I vomited blood one morning. At that time, I thought it was caused by smoking, so I quit smoking after that.

About a month later, I noticed blood in my stool. I reduced my alcohol intake after that. In both situations, I did not feel any pain. It has now been four months, and I have not visited a hospital yet.

A few days ago, I watched a video saying that blood in the stool can be very serious and should be checked by a doctor. Now I’m feeling scared. Can anyone please advise me on what I should do?