Hello,I would love to help I just have a few additional questions. After your reply please allow a few minutes for me to type your answer.
Are you sure she is in heat?
Do her stools look normal?
Is she licking or bitting at her back legs or rectal area?
Have you seen any signs of her dragging her bottom on the floor?
Any increase in the frequency of her urination?
Is she eating and drinking normally?
What breed is she?
Thank you for the additional information.
It is not uncommon to see them act oddly when in heat however from the behavior you have described I suspect she may also have a urinary tract infection. This is very common in young female and can cause pain when urinating.
While infection is the most common cause bladder stones or crystals in the urine can also cause this problem.
I would suggest having her seen by your vet as soon as possible for a urinalysis to look for infection or crystals in the urine. In a dog this age bladder stones would be uncommon but not impossible.
I hope all goes well, please reply back if you have additional questions or concerns
No it is not done with a catheter. Your vet will have someone walk her outside and catch a sample of her urine so they can look at it under a microscope. This is not expensive and depending on whether medication is needed and what type many antibiotic can be gotten at the human pharmacy for 4 dollars if your vet writes a script.
Both Banfield and VCA Animal hospitals offer a free first visit so you would only have to pay for the test and medication and not an office visit if this helps.
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