There appears to be a sinkhole forming on the side of my driveway,
about half in the yard and half in the driveway. Right now it's only a
couple of feet wide and maybe 6 inches deep at the lowest point. I
imagine this is a root or something decomposing underneath? My
questions:

1-Am I going to wake up one morning and find that my truck has been
swallowed up?

2-Is this something I can fix myself? If not, do I call a driveway
specialist? An excavator?

Don't know if it makes a difference, but I live in Massachusetts, so
the ground will be freezing soon.