Are these possible worms, or not likely?

Hello,

I would like to get a second opinion please. I have been having some anal itching mostly at night. During the past couple weeks, I have noticed what appears to me to maybe be a worm? Do these images look like an infection of some sort or is it just undigested food or something insignificant?

Pictures of feces (graphic warning)

http://prntscr.com/j3neah
http://prntscr.com/j3mxu6
http://prntscr.com/j3mxyg
http://prntscr.com/j3my12
http://prntscr.com/j3my40
http://prntscr.com/j3my6v


Thank You Tweet