Try offering the smaller amounts more often.
If she normally feeds every four hours offer her the smaller amount every two hours.
You sound like you are doing a great job with her, it is so hard when our little ones are sick
thanks RB will give it a go....

i seem to be offering her food or drink all day!

its full on thats for sure! call me naieve but i didnt realise how much hard work a sick bub is