We just moved into our home and I have seen these little worms crawling along the bathroom floor and now in the bedroom.
It is very fast and is dark grey and doesn't appear to have legs. The end tapers a little so it is similar to a tad pole shape. I would say they are no longer then 1 cm. They don't have a shell so almost turn to dust on papertowl when squished. I don't know if they are silverfish so am stumped. I searched online but can't see anything that looks like it.

What are these? Where do they come from and how can we eliminate this? I am thinking of spraying some raid along any cracks I see to hopefully kill them but not sure if that will even work. Any advice would be greatly appreciated!

Silverfish or house centipede. Do they look like this? Silverfish - Wikipedia, the free encyclopedia

Yes it looks similar to that. I can't see any legs or antennas on it but the body is the same. Plus it bolts as soon as a light comes on.

Bolts in the light, Silverfish.

Thanks :-)

I looked online and it recommends diatomaceous dust and the put caulking in any openings along baseboards. Is this effective in eliminating most if not all of them?

Yep, works great. You can buy it at a pool supply store. Maybe you know someone who has a pool and can give you a cup.

I'm happy to know finally what to do. Thanks for your help!