Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns....
As per your complain there can be a number of causes for fatigue like lack of sleep, weight gain or obesity, anaemia, lack of work and exercise, hormonal imbalance and disorders like
Hypothyroidism,
malnutrition, addiction to drugs, side effects of medicines if you take any etc..
You can consult a Medicine Specialist and get a thorough clinical evaluation and investigations done to rule out the exact cause of the problem and treatment can be planned accordingly..
As of now take
Multivitamin supplements, take nutritious diet, do moderate workout, keep busy in activities of your choice and keep stress low by doing
meditation..
Now the other part of your questions is smelly pus discharge from belly button can be due to ABSCESS formation secondary to infection and it can occur due to lack of hygiene and accumulation of moisture and
bacterial growth in that area..
You can take a short course of antibiotics and also clean the area with antiseptic solution and apply an antibiotic ointment over it..
Keep the area clean and free from.moisture..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora..