I find a drop of blood along with sputum when I clear my throat. This is happening for almost two weeks. I clear my throat whenever I feel sputum built up in my throat and I have an urge to clear it. I do it around 30-40 times a day out of which I see a drop of blood around 10-15 times. It is mostly surrounded by a thick mucus like substance in green or brown in colour. I get it mostly in the morning while clearing throat after waking up, before brushing and after brushing both. And I also see it mostly when I clear my throat after eating. I do not have cough or cold. I am also having a sharp pain the left side of the chest and heaviness sometimes when I breathe. This is there for a month now and doctor said it is mostly vitamin D deficiency. I have had a chest x Ray and MRI which were clear a month back. I also had an endoscopy back then and had Her Pylori infection. I was treated with antibiotics. Please help as I am very much worried.