Endocrinologyy

One potential reason is that you have a fast metabolism. Your body burns through calories very quickly, which can make it difficult for some people to gain weight. Other potential causes may include hyperthyroidism or problems with malabsorption. You should consult with a dietitian or nutritionist who will assist in creating a meal plan that helps increase your calorie intake healthily. 

A sugar level of 154 might mean diabetes, but it's not definite. Diabetes can cause increased thirst, frequent urination, tiredness, and blurry vision. The causes include genetics, unhealthy eating, and lack of exercise. To know for sure, it's wise to see a healthcare provider. They may recommend a blood test and suggest lifestyle changes or medication.

It sounds like you have high triglyceride levels. It may be related to too much consumption of saturated fat or a lack of physical activity. High triglycerides can cause heart problems, including heart attack or stroke. To lower them, you need to adopt a new lifestyle such as choosing fresh food and working out regularly. Sometimes, help from a medicine can also bring down your levels. 

You may be experiencing symptoms of a condition known as diabetic neuropathy. What happens is if your nerves are destroyed by the overdose of sugar in your blood then it may cause pain in the blood and weakness in the body. Diabetes can cause pain in your joints. But you can control your diabetes to improve your health and doing so would prevent many other diseases. Stick to your medication schedule, learn how to balance your diet, and make an exercise routine that you are going to stick to.

If you are unsure whether you have chest fat or gynecomastia, it's best to consult a doctor. Gynecomastia is a condition where males develop enlarged breast tissue, and it can be diagnosed by a healthcare professional. Please visit an endocrinologist or a general physician to get a proper evaluation and advice.