Can milk go bad, but still taste and smell perfectly fine?!
No, the reason is, when it's bad it's full of bacteria that's what causes the smell. If it doesn't smell or taste funny, it is just fine
I usually used the milk 5 days past the sell by date, after that I toss it
When milk goes bad, it no longer tastes or smells normal. If it still smells and tastes fine, it is not bad.