My brother age 56 is in a lot of pain extremely swollen whole body what can he do better yet what do u think is wrong??

We cannot tell you what is wrong. Why? Because many tests need to be run. Blood tests, urine tests, etc. He will have to see a doctor or go to an ER.

Free medical advice,

Sorry, swollen over entire body < been to African jungle lately ? Since some infections from there would be the cause.

How about diabetes or high blood pressure.

What is your height and weight normally, what it is now.

But honestly, we can perhaps narrow it down to 100 or so possible illness. You will need to have a real medical exam by a real doctor in the office or ER and find out what is wrong