White spots when blinking. From eyes?

Software Engineer with work pressure by profession. Around 4 months ago, observed some thing pulsating white arc at the both corner of eyes near nose and then headaches (not all time). Last time got also camera like white flashes in eyes. Doctor gave amitriptyline, and B12 tablets, thoese were gone. After that I got eye floaters, visible only when seeing white wall. Eye checkup done and no retina tear or hole at that time. Now seeing white spots (like quote symbol or white line) in vision for few minutes when blinking eye only after seeing bright head lights of vehicles. And also seeing vapour ripple effect in vision when going out on a sunny day, its starts after few minutes when I started. I am scared with these symptoms. Are these symptoms for any major concern. Please help and guide me on what to do next. Is there any safe way to remove floaters from eyes?