What do you mean by binocular vision? Binocular vision is absolutely normal. Do you mean to say that you are having double vision?
You could be having ocular myasthenia gravis. All your symptoms can be explained by that and since it would be early stage your doctor missed it. You can read about this condition by following this link- http://autoimmunedisease.suite101.com/article.cfm/ocular_myasthenia_gravis . You should see your doctor again and get this checked. Thanks and best wishes.
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