Back to square one

I've been putting this off since I really have nothing new to report. Every new test comes back normal and yet she is 4.5 years old and weights a whopping 28.6 lbs. I'm stuffing her with calories and there is just no weight gain. We add enzymes and 2 months later I don't think she's gained a thing. 'Course it doesn't help that she's been sick again, a week and a half and counting. This cold coupled with a rise in her Lipase has her sleeping a ton and in some pain. I just wish we could find out what is wrong and give her some relief. The talk now is of a liver biopsy since it is again enlarged, but who wants to do that to such a small kiddo. I'm just afraid we'll go through all that and it will come back normal. I'm beginning to hate that word.