Is it Endocarditis?

I have had the following symptoms for the last two months with no diagnosis yet:
-- Daily fevers of 100+ degrees (with light physical activity)
-- Extreme sweating & shortness of breath with very light physical activity (walking, folding laundry, doing dishes)
-- Exhaustion/fatigue with light physical activity
-- Easy bruising
-- Drenching night sweats
-- Low iron
-- Microscopic hematuria
-- Mild heart murmur
-- GI doctor & Urologist couldn't find anything seriously wrong

[Smiley2000]

I don't think you have Endocarditis.  The symptoms that you are describing sounds to me like you have some kind of virus or infection and that you need to see your GP and get strong antibiotics.

I had SBE (Endocarditis) in July 2007 and with Endocarditis you will have a VERY high ESR, CRP and white blood count that would have alerted your doctors by now and you will have splinter bleedings under your nails by now and the Jane's leasions (terrible red marks on hands and feet) that is also a clear indication of Endocarditis.

Please go back to your Doctor and let them run bloodtests and treat you with strong antibiotics.

Hope you feel better soon :)