I feel for you with the stupid comments. When I was very sick & way below my healthy weight range people made the same dumb comments to me -- especially my tailor. Ohhhh, it just really pissed me off. She kept asking me how I did it & wouldn't believe me that I wasn't trying to lose weight.
As for cutting down on the meds... I wish I had better news but it just took me a really long time. I tried to go faster, but all that did was cause a huge setback & I ended up back in the hospital. Do ask for something for the nausea/vomiting. There are all kinds of options. For general nausea, I liked Zofran the best. For nausea from w/d, I liked Promethazine. When I was really, really sick, I would go in for a shot of Reglan.
Also, you really do need to eat something. Go slow & try to pick something that has at least a teeny tiny bit of appeal, but eating actually will help with the nausea over time. They say that BRAT (Bananas, Rice, Applesauce, Tea) is the easiest diet to manage when sick, but mostly I hate all those things so I just picked things that I would eat, added plenty of seasonings to them and would aim to eat at least 2 bites of whatever I fixed. Ginger is calming to the stomach so I ended up fixing ginger chicken a lot, gingerbread cookies (yum!), and then would look up other ginger-based recipes to try.
As for the alertness, have you tried Provigil (or Nuvigil)? I know, it's another pill to take, but it really helped me when I couldn't get off the meds fast enough. My boss said she couldn't believe the difference. I will say it's probably not safe to drive with Provigil b/c you're not awake in the normal sense of the word, but other than that it's great. I was able to continue to work with hundreds of millions of dollars in transactions every day without making any errors. Often it's a bit of a battle to get insurance to cover it, but it was worth it for me. Also, sometimes psych offices get free samples. You'll have to just sleep on the weekends (not much energy for housework & you do need the sleep) but it will get you through the weekdays until your body can handle the lower dose and still function.
I hope that helps. I just want to cry when I read your story b/c it's so similar to the nightmare I went through. I was so scared about losing my job & eventually, when the economy went south, I did lose it but I lasted for quite some time there thanks to many more meds than I'd have liked to have been taking.
Oh, one more thing, you DO need to eat, but a second source of energy is Ensure. It comes in several flavors and has a whole bunch of calories and protein and vitamins and whatnot. I would put it in the freezer until it got slushy and then would drink it like a milkshake. Last but not least, pick a few foods and tell yourself that you like the taste of them. Be positive about your eating experience (I know it's not easy). Your brain can be tricked a bit and with enough reinforcement it will start to think that food tastes and smells pleasant again (even if you think it smells like #$%^ right now!).