I need help CEL on after head gasket repair on 2005 honda civic ex
So I have a 2005 honda civic ex with
148k.... I had overheating issues and
went to many different mechanics, in
the past year I've replaced my
thermostat, radiator, water pump,
timing belt, starter, battery and just
yesterday the head gasket. I got my
car back today from head gasket
repair, radiator flush and fill, and oil
change this cost me 1100$ today! I
went to turn my car on and CEL
flashed (it was not on before and is
first time I've seen CEL in my 2.5 yrs
owning the car) after flashing several
times it became solid, it also has
some shaking or rumbling coming
from somewhere underneath the
hood. I'm very stressed out and it's
kinda like what now? I don't know
much about cars but I know that my
check engine light was not on before
they did the work. I'm praying it's
something stupid like a bolt needing
tightened. I've put my entire income
tax check into fixing this car. Any
advice or thoughts is extremely
appreciated. Thank you