You have some symptoms similar to IBC.
IBC sometimes is confused with mastitis, breast infection.
You'll need to visit a doctor and check the red spot with biopsy.
If there are changes due to IBC, they won't show on mammogram or ultrasound.
I don't wanna give you extra worry, but, it's better this to be checked.
This cancer is know for its aggressiveness and causing changes in very short time period.
Thinking of you and waiting for your post!
Marija