Hello, You are right to be concerned. * what is your height and weight and age? *do you smoke or consume alcohol? * do you have any other medical conditions or take any medications? * any weight loss/gain? * have you attained menopause? is so, when? Based on your symptoms, I would like to check for cervical spondylosis (neck spine problems) and heart disease I recommend: - a physician consult -blood tests ( complete blood count, lipid profile, blood sugar levels, kidney and liver function tests? - spirometry - chest x ray - electrocardiogram and echocardiogram - a stress test if needed - an endoscopy to check for severity of gastritis (if clinically indicated) based on these we can arrive at a diagnosis I suggest that you see your primary care physician as soon as possible. Hope this helps. Take it easy till the doctor clear you for exercise. Wish you good health