I'm not sure- but it sounds like the circulation flow is really being hindered in reaching your limbs. I know even mercury can slowly clog up your veins- as well as other toxins.

I'd continue chelating but I would also add Butcher's Broom herb to your daily supplements-- and if you are able to tolerate it- some Ginseng. Butcher's Broom has been proven to clean out the veins and is often used by some for varicose veins

I would also begin dry brushing your body every morning before showering. Get one of those natural bristle long handled brushes meant for scrubbing your back in the shower. You can sometimes pick them up in the drug store for $3.99 Yerba Prima also makes one just for dry brushing.

In a circular motion, massage your entire body with it (except face) . This will increase lymph flow throughout your body as well as circulation. Even while chelating, these extra things are good to do to help the body deal with detoxing.

Jumping on a mini trampoline and walking also helps the lymph flow. Walking has the added benefit of also grounding your body from Electrical magnetic chaos we all get on a daily basis from our electronics, sateliltes, microwave towers, etc.