What happens when your dog vomits white liquid and has been in the sun for a long time?
Hi
Dogs can get too hot and suffer from heatstroke in the same way humans can, short-nosed breeds, such as Bulldogs and Pugs for example, are at greater risk due to breathing difficulties.
Heatstroke often shows symptoms such as drooling, weakness, loss of balance, disorientation etc., but it's possible that vomiting could also occur.
I can only recommend that you have your dog examined by your veterinarian right away to make sure that he/she is okay. If he seems unwell, then get him professional help right away. Heatstroke can be deadly.
Best of luck, hope he's doing much better soon.