It is not unusual to be a little sore, esp. if you have fibrocystic breasts or were at a phase in your menstrual cycle when they were more tender. (After all, it is kind of like being pinched by someone.)
If needed, an over-the-counter pain reliever can help.
I had a spot compression mammogram on my right breast yesterday and today that breast really hurts . Is this a normal reaction.
I'm sorry but unless you are a Radiologist you can't assume anything from pictures you see on the internet. Please don't do this much research and let your Radiologist guide the appropriate follow-up care for your particular situation. The internet can be a dangerous place and even though I realize that you have a "need to know" .... leave it to the Professionals who do these procedures every day. Regards ....