nice to to hear from you.
Whilst the things you describe are probably not anything to worry about...in your position,
I would definitely go and get them checked...the red patch might be almost anything, cyst, cellulitis, mastitis(a germ from outside..). maybe entered through the nipple.
The white spots and ?areole change...obviously only you can judge, but as you say anxiety can mimic illnesses,....what I think I'd do....is park the anxiety for a couple of days(i.e. During the bank holidays) then once the world starts up again on Wednesday...have another look at your breasts...if the symptoms persist, make an appointment to see your gp xxx
i am glad you felt able to check in here...do let us know how you get on xx