[higgmeister]

If you are SOB (short of breath) then medical help likely is in order.

I always thought SOB meant something else.

Nathaniel Rateliff & The Night Sweats - S.O.B. (Official)   Caution: language

I always say short of breath when I mean short of breath.   Why would that need an acronym?

[Radix]

SOB is a very common acronym amongst health care people.