I'm sure I had this before and stopped.
I recently bought some maca chocolate powder in waitrose. All week I've felt rubbish when I have woken up, really exhausted, had headaches. I stopped it a couple of days ago and woke up this morning feeling...just better. It was honestly at a point where I thought maybe I have a terminal illness! I don't know if it was the maca, there's definitely some side effects when I look it up, plus I'm on other meds - immune suppressants and antidepressants.
Anyone had side effects from it?