That does indeed look like a worm. As far as I’ve researched, shrimp commonly carry parasites.
I always deworm any new fish or shrimp before adding them to my big tanks after an experience with some shrimp like yours in the video.
I have had really good luck with Fritz Expel-P. It didn’t hurt my shrimp, the shrimplets I didn’t know I had in the tank at the time, or my plants. I did have to vacuum the gravel really well after I used it, but I haven’t had any trouble since then.
RazzmatazzMiserable 
Marked as NSFW just in case.
But is this a parasite? Do I need to worry about her tank mates??
Is there a way to save her?
I’d like to know that too, that doesn’t look good. Did you see the worms first or find it in that state?
I would post this to r/shrimptank.
That does indeed look like a worm. As far as I’ve researched, shrimp commonly carry parasites.
I always deworm any new fish or shrimp before adding them to my big tanks after an experience with some shrimp like yours in the video.
I have had really good luck with Fritz Expel-P. It didn’t hurt my shrimp, the shrimplets I didn’t know I had in the tank at the time, or my plants. I did have to vacuum the gravel really well after I used it, but I haven’t had any trouble since then.
Good luck!
i agree with everyone here, but there is a chance this could be a worm scavenging on a dying shrimp