UPDATE: So I'm currently 10lbs heavier than I was before. It's definitely causing water retention and that, combined with my chronic constipation, isn't helping.
I have also noticed that around my pointer finger, there is a red splotch of skin. That wasn't there earlier. So I'm gonna look up to see if Remeron causes skin discoloration too...-sighs- I guess that's a sign I should stop taking it.