Hi Katherine, I was doing a google search and this forum came up as one of the results. I can't believe my eyes when I opened the link to realize that this forum was entirely dedicated to MAC. First of all, thank you so very much to have been organizing this forum for so many years. I'm glad to find out from your forum that I'm not alone in this. I had never heard of the disease before I was diagnosed with it. My first episode occurred in September 2014. It came on suddenly without any warning. It started out as a feeling of wanting to cough and seeing some bright red blood in the stuff that was coughed up. I thought maybe it was bleeding gum or bleeding nose. But the blood kept coming and the amount was increasing for the next few hours until I was forced to admit that it was time to go to the ER. I spent the night there coughing up ton of blood. Well, maybe it wasn't as much as the medical staff would considered concerning because I was the only one who was worried every time I looked at the waste basket getting filled up with bright red tissues. At first, they suspected TB. So everybody was gowned up. By next morning, the blood reduced to negligible so they sent me home. Within an hour of getting home a county infectious disease nurse showed up to collect my sputum samples. And I also made an appointment to see a pulmonary specialist at the university hospital. The specialist didn't thought it was TB because, besides coughing up blood, I did not have any other symptoms that would point to TB. His conclusion was: it could be MAC but we'd wait to see what the sputum test said. Three sputum samples later, sure enough. It was not TB and I was diagnosed with MAC. During the followup visit, the specialist told me that I had the choice of meds or no meds. By then I was feeling great and no more blood. I said I'd rather not on meds if I didn't have to. He said to schedule periodical followup visits and will only prescribe meds if the condition worsens. Well, I was all clear until this morning. I have been coming down with something in the last couple of weeks. It felt like a cold. I'm now at the tail end of it with no chills or fever and coughing is much reduced. But early this morning I saw bright red blood in the stuff I coughed up. Fortunately, it has been intermittently occurring for the last 8 hours, blood, no blood. And the amount has not increased like last time. I emailed the pulmonary specialist asking him for advice. Hopefully it is not going to be bad news.