Have Fatigue, Burning Cheeks, Nose, Throat. Vomiting, Stomach Acid. Worried About Neurological Issue

thank you....I'm concerned..in fact I've made an appointment with 2. different doctors but I'm a little nervous that I shouldn't wait. I've had some serious fatigue for a while, and burning on my cheeks, in my nose and throat. I've vomited a few times, so I know that I'm having some problems with a lot acid in my stomach and seems to be burning after eating, in my upper stomach and throat. So I know that im more to do with ulcers, etc, which I am aware of. My worry is that this burning on my nose, cheeks, lips, etc. might be a neurological issue, or maybe just an issue that has come up because of the severity of my acidic stomach...I just feel like I have a fever all the time.