You're the victim of Gastroesophageal reflux and you should have to change your lifestyle rather consulting with many doctors. Vomiting blood might be a serious issues. You may have worms in your body for the reason a good doctor also can't able to diagnostic it. Shortness of breath also a issues of weakness in lungs and worms, SPIROMETRY test also helpful to understand your breathing issues. You didn't mentioned your Age, Height, Weight and BP so its hard to predict. Check your BP, SPIROMETRY Test, Lipid Profile and RCB Blood Test and endoscopy will help to identify.
The breathlessness is normally due to as the above person stated the amount of acid and gas in your stomach. They can create a tightened feeling that leaves you feeling like you cant quiet catch your breath. HOWEVER like the people above me i know from having asked my doctor that blood in your vomit is not a good thing, and tends to be a cause for concern and further investigation. Blood being excreated from any end, be it in stools or from throwing up is normally something to worry about, not stress over but get checked ASAP. Hope you feel better soon!!
hi, you vomiting blood might be from ulcers and your breathlessness also might be from the amount of gas in your digestive system, you need to be seen too immediately, perforated ulcers can be life threatening,
what about the breathlessness?
If you're vomiting blood, you need to be seen by a good GI doc and have some testing done. The reason for the presence of blood needs to be investigated.