I need help.. has to do with eye floaters

So I am only 18 years old and have very visible many eye floaters everywhere I look. Normal they are clear and not bothersome. But recently I have a small grey one in the bottom right of my right eye that goes everywhere I look and can’t even tune it out like the clear ones..

I went to an ophthalmologist a little less than a year ago and he said my eyes look great. But this particular grey looking one won’t go away! I can’t enjoy anything I look at or even the sky..

As well when I am outside I see a swirling grey shadow that I have no idea how to explain and the ophthalmologist saw nothing of it and nothing abnormal last time I went...... I want to cry!!!! I feel like I am losing ability to enjoy my sight or something 😭 I’m only 18 and I’m pregnant.