Bottle fed fawn not feeling well,,, any ideas

3.5 month old doe fawn......Friday morning she came to her bottle slower than usual and only drank half. Her belly appeared to be sunken in on the sides. Friday afternoon I injected 1.5 Nuflor 1.25 Vita B 1 Banimine 3 Penicillin and 2 Fuso vaccine. Saturday morning, same thing, slow to bottle and again only drank half. Belly still sunk in. Gave her Target Probiotics W-80 then 1 cc of Ivomec inject dewormer. I have used Nuflor, Banimine, and Vita B with great success in these fawns in the past, appears that this little girl needs something else, any suggestions. Thanks Jeff

About 2 hours after the Target, she appeared to be getting a little perky. She is fine today and full of spunk. Looks like the Target put another one back on her feet. Great stuff.

Robbie, should she be vaccinated again, if so how long should I wait? Thanks

Thanks Robbie, great advice. She has been a bootle hog the last two days now, I think she is playing catch up.