I did a scan and got only 1 fault code (P1093).

Per Google:
P1093 BMW - Pre-Catalyst Fuel Trim Too Rich Bank 2

P1093 BMW Possible Causes
What does this mean?
Low fuel pressure
Large vacuum leak on engine
Faulty Mass Air Flow (MAF) sensor
Faulty Ignition
Faulty fuel injector

P1093 BMW Meaning
Pre-Catalyst Fuel Trim Too Rich Bank 2 is the generic description for the P1093 Bmw code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information abouth the P1093 Bmw OBDII code.

Notes:
-I do not have any warning lights on in my dashboard.
-Sometime I smell gas in the back of the car (driver side) when I park the car.
-I do have an appt with a BMW mechanic on 6/17.

Question:
Should I be concerned? Any advice will be greatly appreciated. Thanks!