Hello Ma am I really appreciate your concern Looking at your detailed description, I will put forward following possibilities Bloating might be related to Aerophagia (swallowing of air) due to use if carbonated vor caffeinated drinks, ill fitted dentures, smoking and acid peptic disease weight gain and sweating might be associated with metabolic disease like diabetes, thyroid disorders In my opinion you should go for a battry bof tests like blood for hemoglobin, CBC, Liver function test, blood sugar fasting and post prandial, lipid profile and thyroid function test. Apart from these tests I would advise you to consult your family physician as per your convenience for physical examination, recording of blood pressure and above mentioned investigations to establish a diagnosis. Meanwhile have plenty of fresh fruits and vegetables in your diet you can take antiacidity medicines like pantoprazole or ranitidine group of drugs for 3 to 5 days. multivitamin and calcium supplements are advisable. Hope I could answer your question, please do let me know if you have any more queries, I will be happy to help you. Best wishes