I have a 1 year old Spoodles who has been having 'episodes' that are becoming more frequent. An episode consists of him panting, shortness of breath, heart racing, pacing/running erratically around the house and often times crying. I have taken him to numerous vets and they are all unsure what the cause is! I have eliminated almost everything however still cannot find the cause. Has anyone heard of anything similar!? I'm starting to wonder if it is the fluoride content in the water - is this possible? His symptoms are like that of extreme separation anxiety however we don't think it's anxiety. Has anyone heard of anything like this!? I have taken him away from the home recently and he had no episodes although had one the day we returned so it is something in the home environment. PLEASE HELP!!!