It sounds like all is going as well as possible. Great news that the tumor is responding favorably. So glad you are keeping us updated. I know when we were in the trenches it helped so much to have these forums.
You are sounding pretty positive as a caregiver too....great job. There will be those down times, but be sure to not beat yourself up for them. We have to have a bit of time to melt down so we can get back at it with a fresh face!!
Kathy