Boob fever??

My boobs have been hurting and swollen all day. Well whenever I got home I took my bra off and laid down in bed, (i sleep in just underwear) and my breasts feel SO hot to the touch and they’re hurting so bad. I don’t believe I’m pregnant (but haven’t completely ruled this out), it’s not time for my period, and I’m not breast feeding either. Has anyone else ever experienced this?? If so, HELP!! I need some relief!!!!