Lepto is a concern, and so is the vaccination to try and prevent it. It's not a core vaccination, and can have side effects.
It's not something I would give to dogs, that are not at a higher risk of exposure.
With mine duck hunting, and exposed to lots of different water in different areas. I have chosen to try, and protect against it. Sometimes it's just the lesser of two evils.
Just wondering if the acid levels in your pup's stomach, could be higher than normal. It would explain some of the symptoms. I've only heard of one dog that suffer from stomach ulcers. So guessing it's not very common.
Prays you find some answers.
Not all those who wander are lost.
Life is just a leap of faith.
Spread your arms and hold your breath and always trust your cape.
Two things define you. Your patience when you have nothing, and your attitude when you have everything.