I don't know how much advice I can give you, but I had to comment on some of the public health nurse's comments.
Breastmilk (or formula) should be the main source of calories for the 1st year. At 11 months, my dd2 is still on 4 bfs a day (6, 10:30, 3 and 5:30/6). She still eats purees (but also does eat finger foods).
She can have cottage cheese at this age.
I do know it is hard, but please do try to relax. Babies are very good at picking up on our emotions and if she can tell you are stressed about it, she will be too (and associate that with eating). She will not starve herself and it is ok to skip a meal. Have you tried finger foods? A banana, a plum, a kiwi? Try something totally new as a finger food (cauliflower, broccoli, green beans, toast, scrambled egg yolk). Keep offering the same old foods too... and new ones.... sometimes it takes 20 offerings of a food before they will eat it.
Her weight gain has slowed... is she getting taller? moving around more (hence burning more calories)? I haven't had dd2 weighed officially, but at 9 months she was 16lbs 3 oz and yesterday I weighed her at my dad's (the method of weighing myself then weighing myself holding her and subtracting) and she only appeared to be 16 lbs (that's 2 months later!). I do know she grew taller as we were at the beach for a week and when we went to go home we had to adjust the straps in the car seat.
I hope that helps, I can see I am rambling on a bit (sorry
).