I'm 28 and I'm suffering from loss of appetite I never felt hungry from past 3 years Im very much constipated,I have severe belching, I feel my esophagus is filled with air, I feel like I will die because of this choking I couldn't digest basic foods like carrot rice curd some times I feel so numb in my stomach  recently I started feeling numbness in my throat as well, I feel like I have cancer or gastric disease I also have hair thinning but no weight loss , I booked for h pylori blood test are there any other tests to go for this problem