Need advice! Eye floater

Eye care
1

Hello All, Over the last few months I have been dealing with eye problems with no answers and I've been to the eye doctor multiple times and they continue to tell me that I am fine so I won't go into detail about my previous problems. However, I have started to notice what I assume to be a floater in my right eye. It is dark in color, almost like a smudge or dark shadowy shape that will dart from left to right or from up to down depending on how I move my eye. It always travels along the same path every time. Is it worth going back to the doctor to see what it is? I'm asking since I know the onset of floaters could mean a much more serious condition is approaching. Any advice would be appreciated and I can go into greater detail with other things if you have questions. Thanks!