Not sure if this is the right place but I figured people might be interested in possible theories as to what causes MND. Looking back I took antihistamines almost every day for 16 years and was on many different antidepressants over the years and now I'm sure all that affected my brain. I was getting brain zaps for many years even when I hadn't had any SSRI meds for years. The zaps were awful and sounded like neurons firing and drs couldn't explain it. Had MRI in 2017 and they couldn't find a cause. Since my motor related symptoms reared their ugly head I haven't had the zaps. Did I cause this with all the medications? I'm sure one day they will find out that taking a lot of antihistamines and antidepressants can cause it. Its devastating enough without thinking I might have done it to myself.