Brief answer....you need to consult a doctor as you require a thorough evaluation to find the cause of this swelling
Detailed answer....
Hello,
Thanks for the query.
I have read your query and understand your concern.
You are having edema which is a build up of excess fluids in the body.
Since you are complaining of swelling over entire body, a wide variety of medical conditions can result in to this.
These conditions could be...
Anaemia with hypoprotenemia 
Use of certain medications like steroids
Kidney conditions like acute glomerulo nephritis ,chronic kidney disease,nephrotic syndrome etc.
Liver diseases like cirrhosis
Heart conditions like congestive heart failure 

You would need a detailed set of investigations to arrive at the diagnosis. A proper treatment can be instituted only after diagnosis.
I hope it helps,however you are most welcome to revert to me for any further query.
Best of luck
Thanks

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