Update- I have appointments with an Internal Specialist and Cardiologist for Tuesday. Her Breathing is normal. She only breathed heavy a couple of times but it was really scary.. She has not collapsed again either.. She has a lot more bounce in her step today but I am closely monitoring her. I've got the ER on standby just in case. My vet is good but I am also looking for a vet that specializes in bulldogs near the Toronto area as well.
Thank you all for your info and prayers!!!! I REALLY appreciate it!!!!