Can GERD cause offensive bad breath

I am having bad breath for almost 15 years. Till now, i was con controlling by brushing and flossing. 3 Weeks before, i had bleeding in my gums. I went to dentist. She told me that i am having lot much plaques which she removed and bad breath from mouth disappeared. At the same time a seriously offensive bad breath started coming from my throat with sticky feeling in the throat. Also there is inflammation in my nostrils. I went to ENT and he did sinoscopy and told that every thing is Ok and there is slight tonsils infection which will be Ok within few days and gave me antiseptic mouthwash. Unsatisfied with his diagnosis, i went to another ENT specialist, he examined me and told me that my problem is very much different. I am having acid reflux and the sticky matter accumulating in throat is due to acid reflux. He gave me certain medicines for acid reflux. I am having acidity for many years and always face nausea. But there is no reflux of food that i eat. There is never heart burn. Gases frequently come from my throat out of stomach. The bad breath is continuously coming from nose and from mouth whenever i talk. People surrounding me directly close their nose and i feel very much embarrassed.
I am having inflammation in throat and have to clean my throat severally. My voice is very much changed due to this problem and it comes very much vibrating. Whenever i bend and sleep the odor increases.
Currently i am having very much stress due to office and other problems. I am not able to eat food properly due to nausea. After trying anti reflux medicine advised by my ENT specialist, the acidity increased greatly and i was unable to eat food. I took another antacid which gave me relief.
I want to ask whether the diagnosis made about me is correct? Can acid reflux  cause very offensive bad breath?
I never smelled this type of bad odor anywhere in my life. I am 26 years old.

[cloa513]

The question is how effort have you done to determine if there is a dietary aspect of your bad breath. What have you tried cutting out without any effect? Your body might have handled it fine before but now it is faulty.