Your fluid body is made of arteries, veins, lymph, and cerebral spinal fluid.
I have come to see the fluid system of the body as part of the infrastructure of the body.
In my experience, the musculoskeletal system can collapse if the fluid body (and the organ body) are not functioning properly.
If the fluid system is not functioning properly, there will be too much fluid pooling in one area, and the area that excess fluid is supposed to be will experience a deficit. Both the areas of excess and deficit can experience pain.
There are many reasons the fluid body might not flow optimally.
The lymphatic fluid is largely reliant on physical movement and proper breathing to mobilize it.
Most people, in my experience, are too sedentary and also do not breathe properly.
This can create stagnation in the lymphatic fluid.
Obstruction by an organ, constraint of fascia, varicosities, and poorly toned muscles can also contribute to poorly moving lymph.
Of course, lymph stagnation can also occur secondary to surgery and excision of a lymph node, or if there is an infectious or inflammatory process the lymph fluid will slow down to try to address it.
Organs that are not moving properly can have a huge impact on the ability of the vascular system to mobilize.
If an organ is not suspended properly, it can kind of lay on the vascular structures and impede flow.
For instance, in my experience pelvic congestion (a vascular syndrome) often has an organ origin.
Three veins (well actually 5 if you count both sides) drain the pelvis: the internal iliac vein, the ovarian vein, and the inferior mesenteric vein.
Problems with the left ovarian vein is the number one cause of pelvic congestion syndrome.
Why? because it has a complicated journey to get that pelvic blood back to the vena cava. The left ovarian vein drains into the left renal (kidney) vein. If there is a problem with left kidney movement almost always you will have problems draining the left ovarian vein and the pelvis. In this case, you cannot just take care of the ovarian vein and tah-dah the pelvic congestion vanishes. You must address any organ involvement and also address the venous involvement (there will be lymph involvement, too).
In my experience in manual medicine, the fluid body is the least appreciated of all the bodies, and the most important to address since it influences so much.
Because of the intrinsic challenges of the venous system, it requires rehabilitation to a degree far greater than the musculoskeletal system, and often will required some degree of support for life once it has been compromised.
