Now I am concerned about the signs Bella is showing. If she is withdrawn, depressed, eating/drinking poorly alongside dribbling urine and licking her vagina frequently, it does raise concerns that we may have a lurking bladder infection here. Other potential options which would be a bit less likely here would be a uterine infection (usually they pass pus or drink excessively), urinary crystals, or bladder stones. And if she has been dribbling and licking, this is likely why you have not seen a normal urine stream from her.
Now if you have every had cystitis, you will know that this is very uncomfortable and can make any animal feel unwell. Therefore, in this case, even if we are not seeing blood, it'd be best to have her checked. This would not be considered an emergency per say, but if she is feeling poorly then it would be something we would want to address urgently. That's because the sooner her vet can start her on treatment, the sooner she will feel like herself.
Still, if there is any delay in having her seen, I would note that you will want to be encouraging her to drink. This will dilute her urine and decrease any burning from altered urine pH and flush out any urinary crystals if present. To do so, offer water, low salt chicken broth or even a bit of lactose free milk. You can also offer wet food since its 35% water. As well, you can give her a few milliliters of aloe vera berry juice from your local grocery or health food store. This can be of benefit in normalizing urine pH and reduce any sting from that.
Overall, your lass is being quite subtle with her signs but she is generally telling us that she feels unwell and that her urinary tract is the likely source of her irritation. Therefore, we'd want to use the above just now but also think about having a check with her vet at this stage. They can examine her, confirm our concerns, and start her on antibiotics +/- dog safe pain relief to soothe her irritation and get her back to passing normal urine for you.
Please take care,