In woman w/pof, can thick uterus lining cause ovul. symptms like eggwhite mucus, pms symptms like sore breasts, then mild cramps/slight brown dschrge?

Maybe normal: All of this depends on where you are in the menstrual cycle. If you are near the time for your period then a thickened endometrial lining would be expected as well as a change in vaginal discharge right before your cycle and pms symptoms. A symptom diary where you track your cycles and symptoms can be very helpful to your doctor to figure out if this is normal or not.