I used to have frequent and extremely vivid dreams but realised while taking Champix (common side effect: extremely vivid dreams) that I'd rarely dreamt in the three years I've been on these meds (amongst others). I realise my overall lack and poor quality of rest must reduce REM sleep but think these meds may also contribute.
I know it sounds like a small thing to worry about against the vicious circle of constant pain and low mood but I wonder whether rarely dreaming may be yet another negative impact on my mental health.