Nesting & water

Is it normal that at 35 + 6 I’m still not nesting and have been tired and lazy I’m doing stuff. also I am low on iron so that’s probably why I’m tired too, I am taking my pills so it’s ehh kinda helping. Also maybe like 2 or 3 weeks ago I got this lost of appetite when it comes to drinking water and that’s like bad but I do drink a bottle of water maybe once a day and I just don’t know how to get back to drinking water all day like I use to do it. Any recommendations on what to do or opinions