Hi, Welcome to HCM. I have gone through your question and understand your concerns. You have to see a doctor and have a detailed blood tests. Common things that can cause weight gain and enlarged liver is diabetes, hypothyroidism, fatty liver etc Please let me know the lab reports. Hope I have answered your query. If you have any further questions I will be happy to help With warm regards, Dr Ajish TP (MD,DM) Consultant Endocrinologist.