hi i had gone through your query and understand your concerns. i would come up with the possibility of ANASARCA
may be teh cause for your sufferings.
there are several causes may produce anasarca.
-RENAL FAILURE;chekc with renal function tests and ultrasound
scanning for KUB
-CARDIAC FAILURE;check with ECHO,
FAILURE;liver function test may confirm the diagnosis
-Hookworms or ancylostomiasis;spot stool examination may confirm the diagnosis
-Protein deficiency may produce this condition.
I hope this is helpful for you, thank you