i got sick last night and vomited up something dark and was anywhere between 4-6 inches long and round at the ends, right before this happened I had been coughing, before I could really tell what it actually was, it had disappeared when it was in the toliet. I dont think it was stool, scared me and still worried as to what it could have been. I still dont feel up to par.  Any ideas on what it might have been? Thanks for your time.
Hello understand your concern. The first thing to define is can you explain more clearly you had a cough or a vomits? I mean if that black substance came out of the lungs or the stomach, because they have different plans of diagnosis and treatments too. If you say it was a vomiting you better to do a procedure fibrogastroscopy for the stomach and if it was a cough a fibrobronchoscopy for the lungs. If you are a heavy smoker or work in dirty environment it might be the lung problem but if you Chat Doctor. I will advise you to see a GP than to decide about the procedures I explain. Thank you