Effexor withdrawl symptoms and conditions

I started taking 300 mg wellbutrin sr while weaning off of effexor xr (another nightmare) about three months ago. The past few weeks I have been extremely agitated with everyone in my life. I have also had the worst migraine of my life that will not go away. I'm not sure if this is a side effect of the welbutrin, or just more painful effexor withdrawal? My husband swears that my anger has made me a different person. I hate the way I feel, but don't know if the Wellbutrin is making it better or worse. Anyone have any input?

Heart racing so much I can hardly breathe. Nausea beyond belief and vomiting, feels like my head will explode, insomnia, nightmares, sweats where I am drenched from head to toe......to name but a few. I'm on this website because my Doctor tells me it's not the medication and I know it is. I've been on 3x75mg per day and have weened myself down to 75mg a day over the last year but side effects are getting much worse. Feel like I should take myself to hospital but don't think I can get there. Depression was bad enough but now I'd rather not be here at all.