There is no one disorder that covers all of this.
Yellow feet is a bad sign for jaundice.
I don't know what you mean my poor circulation.
Depression can cause confusion, memory loss and fatigue, and would need to be treated.
Other things that need to be checked are
inflammatory load [CRP] and ANA panel for autoimmune problems.
All routine labs.
Urinalysis to look at the kidney and bladder along with the blood tests.
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