Hello & welcome, I am Dr. B, a licensed veterinarian and I would like to help you with your wee one today.
When Jack has these yelping episodes, what position is he in?
Does he have any hunching?
Favoring any legs
Holding his head or tail low?
Will he comfortably let you move his neck?
Will he allow you to lift his tail? Any changes (lumps, redness, swelling, etc) near the rectum?
Are his gums nice and pink (not white/pale)? Moist or sticky?
If you press on his belly, does he have any tensing, tenderness, discomfort, or pain?
Could he have eaten anything he should not have (ie bones
, stones, socks, toys, plants, chemicals, human meds, etc)?
How is his appetite, thirst, urination and stools?
Any straining when he goes?