Ghost image and after image. Of this?

I am seeing ghost image when I see tv with subtitle or phone(mostly with black ground and white text). I also see after image when I move my finger slowly or the movement of some other object. I am having the issue of floaters from past 7 months. Floaters keep increasing.  Also seeing the Starburst light in night. Ghost image issue is happening from past two three months. I checked with neurology, retina specialist, opthalmology. Nothing has been found. I did brain mri scan, visual therapy test. Everything is normal. I am worrying about it. Why its happening to me? What should be the reason of this? I am a thyroid patient from past 8 years.  I changed my medicine from thyroxine 50mcg to 35mcg as per doctors' suggestions and was also on cholesterol medicine for 2 months. Attaching the screenshot how I am seeing the letter.