Hello :) 
 
About 5 weeks ago a stray 3-4 weeks old kitten was hanging out on my husband’s car. We adopted her without thinking twice. On Sept 9th she woke up being very vocal (uncommon), lethargic, just not herself. We took her to the vet, they gave her antibiotic and diagnosed her with upper respiratory syndrome. On the 2nd day of antibiotic she was already back to normal and we finished the antibiotic as instructed and she was doing great. This past Saturday (09/27) she threw up, and got extremely lethargic, rejecting food, had bad diarrhea,I found a fleas on her, her tongue was a little pale.. (though I had previously bathed her and nothing came out of her fur), she was on one position the whole day, so we took her to the vet on Tuesday (09/30). They then diagnosed her as FIV+, gave her some med (an antibiotic to be given only 1x/day) for her diarrhea, gave her CapStar (?) for fleas, and dietetic supplements (L-lysine), medicated food. Since then she has improved and become a lot more active, but still not as active as she is. She still refuses to eat her food, she will rarely eat the whole portion we administer, and will only take churro or temptation treats, which I know it’s not ideal but she will refuse anything else. I def can tell she lost weight bc I can see her hip bones now. I don’t know what to do. Realistically, I can not afford to take her to the vet right now, nor do I think there’s anything else left for them to try atm. I don’t know, this is my very first pet of my own and first time with kittens. So please any advise is very appreciated, or anything honestly. She does not look sad, or like she’s suffering and in pain. Her itching has got a lot better, thankfully. But her playful mood and appetite are just not fully there, in fact, appetite is just not there. 

I really want her to at least recover her appetite so I can have some peace of mind.
Thank you in advance and meet my girl Pipa <3 

Advice Needed