Noises

If you are autistic it is extremely possible and likely that you have super sensitive hearing. My son has this and we have to be very careful about loud noises because they bother him. I have relatively sensitive hearing at times and hear things I shouldn't be able to with normal hearing. Mine isn't a spiritual thing. The noises you describe sound less spiritual and more of sensitive hearing. Spiritual noises are more often foot steps, loud banging, and things that truly startle you when you hear them. If you come across a spirit doing this, you don't have to ask, you know it is one! At least that's been my experiences.

try meditating on the noises maybe they will tell U about there selves (if they were magickal )

Maybe that's what happend