This picture could be a parasite or even yeast. If I were you I would go seek out advice from a naturopath. I recommend a naturopath as I find they look at finding the cause and not just treating the symptom.
I personally would incorporate a cleanse to ensure I have gotten my system on the right track. I have been using colonix by drnatura for the past 8 years and it really has helped me maintain my health. I didn't believe I had parasites until I saw them with my own eyes.
This is only a recommendation and is something that I have done and what has helped me.
I hope you find the answer you are looking for. Good Luck - keep us up to date on your progress.