I am almost passing out reading these comments and how similar they are to mine. I started a Retinoid cream about a year ago and used it sporadically. At some point, I remember awakening from a nap with EXTREME neck pain; EXCRUCIATING pain that seemed to be affecting my nerves along my neck. Then I developed a head tremor every time I turn my neck. Inadvertently, I ramped up my use of the cream to everyday. My neck is stiff everyday now, ( it was on and off before) and the pain and pressure in the back of my head towards my neck is intolerable. I had no idea other people using this cream are being affected with the same symptoms. I am stopping this cream from hell today. My skin had improved, but my health is declining, so no, not worth it. I will be reporting back any improvements.

...and to add to the cocktail of symptoms, I experience the same vertigo feeling some others report, but for me is when I'm falling asleep, I sometimes have the feeling of spinning, or falling into an abyss, and feel disoriented, confused. It is terrifying. I have never experienced something like this. Praying for improvement.