hi. im 23 years of age and when i was around 16/17 i developed eye floaters and black dots in my vision alongside flashing lights and pain at the back of my head...for about a year i was worried sick i had mri done which came back normal i even went to the eye clinic which came back normal eventually i got so used to having them and now 6 years later i still have the vision problems. The last few weeks it seems like its got worse as ive started to notice it again.. but now i have eye pain behind my eyes , eyes are watery and feel gritty, loads more black dots in my vision which i cant ignore and head pain everyday which comes and goes mainly at the back of my head! its making me worried sick again can someone shed some light on what this could be,my main concern is the black dots and weird colours now. thank you xx