I am not making the story up.
My memory of the incident was is quite clear, there was a distinct and drawn out period where the sounds continued after I stopped, long enough for me to turn around and look behind me while they were still happening.
When faced by anecdote of an unexplained happening such as yours most skeptics will say that either you are making it up, or you have a faulty memory, or you have had a hallucination.
Your story is similar to a friend who lived with her family in a haunted house. The previous owner had been killed by a deranged worker with a spade. The ghost was seen by most of the family walking around in broad daylight.
When the friend walked down the passage there were occasions that she heard footsteps behind her. She would stop and the footsteps would continue for a few more steps before stopping.
Explanations.
A brain malfunction if there is no such things as ghosts.
If ghosts do exist then it seems the spirits linger on for a while and have a small amount of capability to interact with matter. It is an effort for the ghost, and they have to rest.
Spirits or ghosts decay and fade away with time, and they lack intelligence since they are a ghostly copy of the living organism. Souls are the entities that may or may not have an afterlife.
I do not know whether to believe you or not. There are many frauds out there, and there are many cases where the human brain does deceive itself.
Some of these things do repeat (not for me though). Perhaps if you went back?