Lumpy Breast tissue or something else?

Kaitlyn • Christian ✟ Married to the love of my life
So I always like check my boobs to see if there is something abnormal in there, but I don't know what a normal boob is supposed to feel like, honestly. When I'm a week or so before my period my boobs get sensitive and sore and then I feel lumpy parts and they feel uncomfortable. But when I'm not on my period or near it, I can still feel the lumpiness. The lumps are sore before my period, but when I'm off they just feel bumpy and lumpy, not any significant pain. Is there something wrong? Do boobs normally feel completely smooth and soft? also take in mind I have a cup breasts. should I tell someone about this?