Hi Calmor,

I've had the exact same issues with the dreaded B vitamin. Totally irritable & unable to control outbursts- a total 180 from pre-PCS.

Taking them every 3 days has been a huge help (thx mrsD & Lara!)

Also noted your B12 dosage probably needs an increase- my Jarrow methyl B12 is 5000 mcg (ug).

Hope this helps,
Grace