It doesn't sound 'too healthy' at all if the ultimate result of your diet is feeling sick and dizzy!
I'm finding it difficult because I'd just managed to stop obsessing about food. I wasn't thin by any means (probably a size 12/14), but was exercising regularly, was eating without writing it down all the time, or counting calories obsessively, or weighing every morsel I put into my mouth. I also wasn't weighing myself - I hadn't weighed myself in 2 years, I just went by my clothes and how I felt in general.
Then the first thing they do at the midwife appointment is weigh you. Urgh. By that point I'd already not been able to exercise properly for almost 3 months, and was eating loads of carb foods to stop myself feeling sick - I felt pretty dreadful, including wobbly with fat, and I had to get on scales. The first midwife was lovely, I explained that I didn't want to know my weight, she didn't tell me where she wrote it and I didn't look for it. She said my BMI was nothing to worry about, and it got left there.
At my next scan appointment they wrote it all over my notes/the letter to my doctor. So now I know my weight and my BMI - neither of which I'm 'happy' with, even though by that point I had a bump, and had clearly got heavier.
I've now removed all mirrors from the chest down from my house, and have definitely kept the scales away. It was OK for awhile because I was only craving salad and fruit, but recently that's changed a bit towards dairy (icecream and yoghurt!), which I feel is harder to feel positive about. Doesn't help when your partner grabs a pinch of muffin top and says things like 'hmm, you've put on a little bit here'. I had to have words with him about never mentioning my size other than in relation to my bump area, because it just results in a flat spin of panic. As does catching sight of myself in a swimming costume at the gym, but I try really hard not to look.
What I know at the moment is that my shoulders and collar bones and face are really well defined (because I can see that every day in my chest-up mirrors), so it definitely is the case that any extra fat and weight I have is centred around where the baby needs it - helps remind me that it's about the baby now, not about me and my ridiculous body issues.
Hard though...