When i had my second stroke, my left eye was 3° out and UP for 4 days, my god that was truly horrendous. Violently sick until they fitted a temporary prism to my glasses. Hoped and prayed it would return to normal, as having a permanent prism in my glasses would have tipped them well over £500. Thankfully they did return to normal. Double vision is no joke, but the brain can adjust for side to side and up and down, but not for both at the same time. Glad it's sorted itself out, you have my sympathy for the time you suffered.