We dealt with a similar issue with our Golden doodle
Ended up at the neurology dept at Summit in Tacoma . The care we received was great.
After a couple grand they couldn't with absolute confidence identify the issue. Dog was poisoned by lilac root a year or so prior. So they think residual nerve issues. The other possibilities where Coonhound syndrome, tick paralysis and general disc compression.
Dogs first episode lasted two weeks.
Since then he has an episode every 4-6 months that last 5-10 minutes. No use of back legs ..
We manage it with CBD..seems to help....in general the dog has tons of energy, we walk 2-5 miles a day.... and when there's a squirrel he runs about 40mph...
