Trying FOODMENT ensure END FOODMENT certainly can't hurt. They say babies will take what they need, but most people also say it's not safe to have two or more trimesters of losing weight. You also need to consider your health. My first pregnancy sounds similar to yours. I lost weight, and despite being on IV fluids, a zofran pump, and trying every medication available, I was never able to gain it back. By 25 weeks, I was very malnourished. My hair fell out. To this day, if I hear stories of people starving (like in prison camps), their descriptions of how their bodies felt are exactly how I felt at 25 weeks. I no longer had a choice - I needed TPN. Without it, I don't think I or my DD would have made it through the rest of the pregnancy. Eventually, my hair stopped falling out, and I felt alive instead of like the walking dead. I know it's not fun, and the possible complications are frightening (I hate having PICCs because of a heart defect - sepsis for me means risking a malformed heart valve and possibly open heart surgery). But it comes down to doing what you have to in order for both mom and baby to survive. I'm so sorry you have to be where you are right now. It's not fair.
Lauren (2004). HG from week 6 to delivery. Zofran, reglan, phenergan, unisom and B6, protonix, prednisone, PICC, IV hydration, and TPN.
Angel baby (April, 2011)
Madeleine (2012). HG from week 5 to delivery. Zofran, phenergan, unisom, protonix, Zantac, PICC, TPN, and IV hydration.