I found out why I was so nauseated. I don't eat alot, or I once ate little. I would have a bowel movement every 3 days. While on my Mirtazapine, I eat more. I still only use the bathroom once every 3 days. My bowels were backed up and my food had nowhere to go. This happens alot. Wish my intestine tell me they need to be emptied, I'd gladly conform to that xD Thanks for the responses guys!