I've been having shortness of breath and recently got an Echo done, which said there was mild LVH. A couple of days ago, I noticed a little blood when I spit, and my doctor recommended I take Augmentin 625 and Montair LC for a week. I've been on them for two days now, but I noticed bright red blood when I spit again today, with no mucus color. I also have GERD and have had this issue for more than six years. Could the medication or the GERD be causing this, or should I be worried about something more serious?