I have had hundreds of similar looking seed things after started a cleanse. I associated them with roundworms as I have had plenty of those. There were so many of them coming out on the meds. Not sure if they are oocysts or cysts. I am not sure if this is what you have but since you have had the picture earlier of that roundworm that should be a good clue in which direction you need to go. I also see white mucus like things so if i were you i would look into leaky gut, bacterial overgrowth/SIBO treatment, which requires you to totally change your diet and pulse high amount of anti bacterial naturals and some good quality probiotics. I have just read about this yesterday, here: http://www.debugyourhealth.com/healing-leaky-gut/
This is about Liver Flush to help remove toxins from your liver