Anyone that has had bariatric weight loss surgery ever experiened black out spells, passout, or/and faint? Cause my fiancee' had biartic surgury over 3 years ago and he has experienced black out spells and all of the above but the past few months it has gotten worse. His surgery doctor said (this was 3 years ago) he said that it should stop when he has lost enough weight and it has but it's just gotten worse.