Hi, Im a male, 5'11 height and 10 Stone 9 pounds...For the last week to 2 weeks I have been having sinus problems, im also asthmatic and in recovery from alcoholism 2 years sober, This morning while out, I felt like i was going to faint, it was just after breakfast, it has really frightened me and im a bit worried as this has happened at least 6 times in the last 2 weeks. Im also a smoker of about 20 a day. Could this be something more than just sinuses? I got anti-histomines this morning and havent seen a doctor yet.