Spitting up blood.. TMI picture

So 3 months ago I started spitting up small amounts of blood. I ignored it and it went away. But this past week I started spitting blood again. When I clear my throat or cough and then spit it comes up. I went to emerge and they did a chest CT and a chest Xray and thankfully both came back normal. The doctor checked inside my mouth and back of my throat and did not see any signs of bleeding. Needless to say, I was given no answers and once again today I spit up blood. Sorry if the picture is TMI. I’m just wondering if anyone has experienced this.. I’m so confused and worried that maybe it’s coming from the stomach. Google always says the worst so I’m trying to stay away from there. My husband and I are TTC and I want to get this sorted out.. :(