strange!

A few days ago I noticed a strange thing. I noticed that in my left side, i noticed a very bluish tint in my peripheral vision, so i would look at certain things in my vision would have a bluish tint and it lasted about 20 minutes or so........ i didn't have any headache or anything. then this morning i woke up with a sorta case of vertigo so i laid back down to get rid of it. Later on in the evening, i noticed the bluish tint again and it lasted for about 10 minutes and then disappeared. This is really strange.
The only thing I can say to back up my history is last year I got my teeth pulled and was prescribed some pretty strong pain pills (which mind you i didn't need ANY) and I took one and got up way to fast to run out to my car and wound up fainting and hitting my head on my bar stool and literally falling unconscious for about 30 seconds. Which my boyfriend heard me fall and came out to call an ambulance, when i had woke up and he had asked me, which i had no idea what had happened. (cause the pain meds... my head didn't hurt) I did see my doctor a few weeks later and he examined me, cause i had a case of blinking lights in my peripheral vision. We had come to the conclusion that I was weaning off of anti-depressants, so this might be the case.... I dont know this is kinda scary to me and would like a doctor's opinion or advice. thanks.

[AllSmiles516]

I still haven't received a reply of any sort. I am curious as to why i might see a very  bluish tint in my vision... mostly my left eye in my peripheral vision. I have had a headache today mostly all over my head as well.