Hi! If they are perfectly straight and as thin as a rice grain-- they may not be flukes. Liver flukes are reddish to coral in color, but they tend to look more plump, slimy and slug-like in appearance. Many times they are curled up too.
I've seen photos of reddish brown toothpick looking things under the skin on someone's forearm. I also recall reading a post over a year ago of someone passing these things in a liver flush- and also wondering what they were too.
I'm wondering if it's some type of hookworm--being that in that one photo, they were burrowed in that lady's arm skin.
I also remember after my very first parasite
cleanse that I had a few of these things borrowed in the roof of my mouth. I'd look at them in the bathroom mirror and wonder what they were. After my cleanse was complete, they were no longer there. I couldnt exactly pull them out because i'd damage the lining in my mouth. They looked like brown toothpicks actually.