I’ve spent months collecting survey responses from individuals who experienced adverse effects after botulinum toxin injections. I wanted to walk through some of the most relevant findings from the data. (All identifying information has been removed. Data is self-reported.) 1. The Most Common Symptoms (And What They Suggest Neurologically) Top Reported Symptoms Symptom Approx % Anxiety / panic attacks ~90% Fatigue ~85% Brain fog / cognitive impairment ~85% Muscle weakness ~80