Floaters in my eyes. Dear doctors,

Dear doctors, thank you so much for the help. I have myopia of -2 and developed extremely dry eyes at the age 26 because of computer vision syndrome. Within one month of suffering from dry eyes I also developed floaters, dark or shadowy thread or wisp like in both eyes. 2-3 in left eye 5-6 in right eye. I don't see them all the time, just in sunlight or extremely bright background or sometimes on laptops. My dilated exam and fundoscopy results appear normal touchwood, but they have asked me to be cautious of flashing or lightning streaks. It is still so difficult for me to understand. These lightning streaks, how long do they last when they happen? Do they happen to both eyes at once? I get checked up every 2 months, what else can I do to fix this. My life is ruined in the terror that I live in. HELP ME DOCTORS.