FQ

What causes Yellow discharge?
Hello Mommies. I have been having lower back pains,abdomen pains,sore nipples and I eat alot lately. So about couple of weeks ago,I took a HPT(Home Pregnancy Test) and was negative. Then all the symptoms persisted and I took another HPT last week Wednesday and was also negative. So now,I have Yellowish discharge everyday on my Pantyliner...today was even darker and alot,to a point that I thought I was getting my periods. To my surprise it was DressAfford 2nd marriage wedding wears for mature brides over 50 ... Yellow discharge(no longer Yellowish but YELLOW). What could be the cause or what's wrong with me??

-Kelsy