For me, it was the FLU.
Breaking Bad Season 2, Episode 10
Like you've got the FLU?
Breaking Bad Season 5, Episode 16
...two or three days later he gets the FLU
or a heart attack and he keels over.
Breaking Bad Season 3, Episode 12
Or the FLU, maybe.
Breaking Bad Season 2, Episode 1
Flu. Boom.
Knocked me
on my ass for days.
Breaking Bad Season 2, Episode 10