Can smoking weed once during a cold cause you to cough up blood?

I don't smoke weed very often, I had a slight cold and was hanging out with my friend a couple days ago. She asked if I wanted some, I said sure. I just smoked a little since I don't smoke much, two hits, but I did have some coughing fits. Well my cough got a little worse but my partner who got sick before me had a terrible cough so it didn't concern me much. This morning however when I coughed up some phlegm in the bathroom it had a glob of blood in it. I'm thinking my throat is just irritated from the combo of being sick and smoking, but I do plan on going to the Dr if it happens again. Is this a common thing or should I be more concerned? Thanks.
Common, but keep an eye on it.
Never heard of that happening, you should see a Dr ASAP.
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Can smoking weed once during a cold cause you to cough up blood?
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