"been taking mirtazapine for 7 weeks - definitely sleep (out like a light) but feel groggy/cloudy head in the morning.  i have a constant dull headache and my vision is blurred sometimes - the glasses i got for being short sighted, in early dec are no longer suitable. blurred vision is not on the pil yet but i see many people report it. emotionally i am numb; not happy, sad nothing - seeing dr to reduce dose with a view to stopping. appetite increase is ridiculous-even when i feel full i can&#039;t help shoving more in; just shows the brain-gut link is so true. also very dry mouth that cannot be rectified drinking 3 litres a day! "