this little girl was found under a fire truck engine when she was tiny and is very timid,i have now had her for 2 monthas and she is 6 months old,she was eating well up until 2 days ago,now i never see her eat, i try dry and wet food (she was enjoying royal canin just fine) and pieces of chicken and beef and tuna, nothing works these days, i got her medical cat grass as i thought maybe her tummy was ill but she is not interested, she knows where her litter is and roams the house freely, but i have never been able to touch her or go near her since i brought her home, she just either ignores me or runs away if i get too close,i do go to her often and talk very gently to her which she doesn't seem to mind and she normally sits on a windowsill in the sun or in a quiet place alone which is unusual for a kitten her age and won't play with me or the 9 month old kitten i adopted at the same time who is very friendly and full of fun,they know each other from the shelter and she adores him but when he wants to play with her she can't seem to handle it,when she thinks i am asleep at night she gets on the bed with the other kitten but as soon as she knows i'm still awake, she jumps off, yesterday i was sitting on my bed and left the room for 5 minutes and when i returned she was on the bed, i told her very gently i was proud of her and she was a good girl, but i didn't approach her as she looked scared and she then peed on the bed, i didn't scold her but she still hid from me for the rest of the day, i really don't know what to do to try and get her to trust me, i have been told to try handle her more but when i have tried it has always been a traumatic experience for her with a bit of chasing initially and she never seems to enjoy it,and it never improved anything,she doesn't purr and seems to just wait for it to end, i have tried leaving her alone and letting her come to me in her own time but that hasn't worked for 2 months now, i have tried treats and toys and i have been only gentle with her to try gain her trust but it doesn't seem to work very well,she has no problem walking past me to get to another room or sitting in the same room as me is also fine but i can't approach her at all. the woman at the shelter where i got her from, told me she didn't seem to like her either,she does not seem interested in catnip as well, i will not return her to the shelter as she deserves a good home but i would like her to enjoy her life and want love and attention. I have had many cats before who enjoyed long and happy lives and were all adopted from shelters but i have never had this problem before. she is not spayed and i would like to take her to a vet but i fear the chasing to get her in the cage and the visit to the vet will cause her great distress at the moment, any advice would really help.