My urine smells like rotten eggs periodically, my right thigh and fingers go numb and cold, shortness of breath when active.

Lots of issues: With all of these issues you need to see your doctor. The urine issue. You will need to give a urine specimen. You other issues will require an extensive evaluation so best to get to your doctor and work on one issue at a time

Various symptoms: Foul smelling urine is nonspecific and a simple urinalysis and microscopic examination would check for urinary tract disorders.Numbness in the right thigh suggests a nerve impingement which may be in the vicinity of the groin. Fingers turning cold,especially on exposure to cold temperatures, caused by vasospasm as seen in Raynaud's syndrome. Your physician can refer you to appropriate specialists