Lump in breast?!!

Em
Hello ladies! So the other day my husband hugged me goodbye before he went to work and I noticed my breast seemed so tender so I started feeling my breast and I felt like a semi huge knot close to the nipple of the breast. I hadn't realized it was there it doesn't hurt just a little sore but I'm scared. I've always had weird things going on with my breasts, I've had cysts in my breasts before, nothing serious. I had to take antibiotics for it to go away at the age of 15. Also, when I had my daughter, I breast fed and I got Diagnosed with Mastitis 3x. My breasts was as hard as a rock, with fever, and it was very painful. I had to take antibiotics too. Breast cancer doesn't run in my family. But should I be worried? I already made an appointment for this Tuesday but I feel it's going to be an eternity, can it I just be Tuesday already? I just  want to have a peace of mind. 😪