You need to see an ophthalmologist or optometrist for an eye examination.
If you live in USA you can find an Eye MD near you at www.geteyesmart.org
JCH MD
I have the same thing. I take antidepressant medication, do you. This just started happening to me within the past 2 weeks. I thought I might be going blind, thought it might be a Side effect of my meds, thought it was diabetes, now I think it's low blood pressure. If you find anything out, please update this.