Gyn's can large fibroids (3) on top of uterus cause sunkening in of ankle?could it be they are pressing on the organs ?i'm anemic due heavy bleeding

Possible: By "sinking in" of ankles , I assume you mean pitting edema. Large fibroids can put pressure on the large iliac veins that bring blood from the legs and feet. That can cause a backup of fluid in the tissue of the legs and ankles which leaves a temporary fingerprint when you push in on the ankle. There are other causes such as cardiac failure that you should have checked out by your physician.