My ittle girl sounds just like yours! She loves her milk & isn't interested in solids at all.
She will have 6-7oz milk every 3-4 hours & all I can get her to eat is a Little Stars yoghurt/framage frais at lunch, a couple of oatcakes & just a couple of spoonfuls of whatever ive made up.
I have tried her on jars of baby food from the supermarket, I bought an Annabel Karmel baby cookbook & do all the recipes from out of there, I tried eating with her but nothing. She either spits it out or just has 2 maybe 3, if Im lucky, Tommee Tippee spoonfuls.
So she probably eats less than your little girl.
She spits rusks back out & most fruits & veg. She seems to be very very fussy which is a surprise as none of us or our family are fussy eaters. As a matter of fact, my husband is a Head Chef!!!
I give her finger foods of fruit, veg, rusks, oatcakes etc which she seems to have a little bit of but mostly just plays with it & chucks it around!
But she is very healthy, very very happy, she sleeps through the night, she's gaining weight so the health visitors told me not to worry & she will eat when she's ready.
Lilly is 8 months old next week so a very similar age.
Check with your doctor when u go but, as I say, I go to get Lilly weighed every 2 weeks with the health visitors & they aren't worried one bit, so Im not. I hope that helps & puts u at ease a little!! :\)