With your present symptoms and your previous abortion
history, you should seek medical attention at the earliest. Presence of milk is seen during early pregnancy
and this could be the reason; also since you have recently stopped feeding, it could manifest more easily. Please see a specialist, get your serum beta-hCG
levels assessed along with a trans-vaginal sonogram and get treated if needed by hormonal
supplementation. Avoid intercourse and stressful activity and take as much rest as possible. Wish you good health.