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The symptoms you have mentioned commonly seen before expected date of cycles and probably is pre menstrual symptoms which shall wean off once the cycle starts.
Regarding the lump in the breast
, try doing "Breast self Examination" Steps are available on the internet. In case, if you are still concerned about it suggest you to visit Gynecologist or a General Surgeon
for further evaluation.
Regarding the precancerous cells, please provide me further details so that i can revert back.
In case you need any further assistance, will be glad to assist you.
Wishing you happy and healthy life
Dr T Shobha Deepak