itching thru the night last night

i barely slept. ruby had me up most of the night. she itched/scratched/chewed almost all night.. she went from her crate to our bed to her crate to our bed itching/scratching/chewing most of the night. all she got for dinner was ground turkey, salmon oil, acidophilus powder, and a teaspoon of beef/green tripe mix. .... i am thinking the beef/green tripe mix is what set her off last night.... one more day before we see the new vet... i have got to get some relief for her.... she is either OCD on the itching stuff, and has nothing wrong, or she has something wrong to validate the itching... we had company over yesterday, she didnt itch once while they were here.. she ate dinner at 5:30, got the teaspoon of tripe/beef mix, and didnt itch until the company left at 9pm... once they left, it was weird, she started itching then... could it be the forced hot air heat we have? could it be some sort of OCD behavior? could it be a stress factor the itching? could she be bored? if we are out and about doing things she doenst itch
AT ALL... keep her busy, no itching.. allow down time and relaxation, itching immediately starts.... as far as her hives, she is obviously allergic to something, i do know that if she has milk bone or any type of dry biscuits /treats her chest area breaks out in hives, so there is a food allergy there somewhere. i dont know.. all i know is 4 vets so far cant find out why she is itching like this, and i am out of money.. I hope this holistic vet can find out what is going on.