Hi all
I am praying for all of your babies and families. I hope you can get a proper diagnosis asap and get the tx going.
peanut was also very active. we live in the mountains and hike often, she was always healthy as far as we knew and could see. she was diagnozed with the heart problems in Dec 2003 after turning 5. She went to the bridhe on 2-15, but again the sooner you diagnose the better as dogs can and do live normal lives with the help of meds out there.
She had her first episode when we were getting her leash to go out, and she got excited. Her second episode was before we saw the vet (or maybe literally it was right after) when the UPS man came and walked in our foyer. Of course she got excited and this time did not fall all the way over, but her four legs started to splay out and she managed to catch herself and we got her and calmed her down. These did happen on and off during the initial month or so that we were trying to treat, as we started sota

for a month, an dthen we stopped it as recommmended to run more tests and see if there was a difference, but she had another episode or two within a week so we started her back on the meds and kept her on them foir over a year. this past xmas i noticed her slowling signofocantly on walks and occassional vomitting. we did another ekg for the sake of it since it had been a year and they found her heartw as more enlarged and arythmia. we added a stronger med along with the sota

for the last month or so, and she was happy and had good qulaity of life. it was only the last few weeks that she declined rapidly. She was 6 +. I hope this info does not upset you too much, but rather gives you lots of info and questions to take to the vets while they try to see whats going on.
please keep us posted. i keep you all in my thoughts and prayers and know that you have our peanut angel watching over your babies here on earth now. !