[joy and bella]

I have posted before about bella's non stop crying. well we have been to 2 vets. The crying hasnt stopped!!! we had her fecal tested, her ears for infection, and we r trying to get fleas under control(she only has one right now but i still see it biting her). all that came up negative. They now say they want to do a urine analysis, blood work, and take xrays to make sure everything is fine with her spine and organs!! the total estimate for these 3 things was $360!!!! OMG..so expensive. so i called my insurance (I have VPI) and asked if it would be covered and they said that if nothing showed up as wrong it probably wouldnt be covered!! what do i do???? The vet said she thinks it is behavoiral and gave me the number to a guy that helps and said maybe she should be put on anti anxiety medicine!! i found that strange. can anyone offer some advice please?? i dont know what to do!!