What's the worst that can happen after taking a baby aspirin?

Maybe it wasn’t the baby aspirin I took after dinner. I mean, I had a whole lot of spicy spaghetti and a big salad beforehand. Turkey, fried with onions then a jar of basil and garlic sauce was added along with a little cayenne , sugar and garlic powder. I took a baby aspirin as directed by my daughter the nurse who was almost yelling at me I need to take them daily . For over two hours I had chest and abdominal discomfort but no true nausea. What do you think happened? My grandmother died of stomach cancer and I had h pylori twice. Three Tums stopped the pain.