They sound like Greys, but you said they were taller than human? Normally Greys are shorter, about 3 ft 5 in height.

They kinda sound harmless though, seeing as you were distressed and they realised they decided to take their leave. Still sounds scary though!

I hope you're okay, these experiences can really take a toll on some people, but there are people on this website who could help and people who have experienced the same.