Never heard of a "watershed stroke". Does it just mean a big stroke that changes the patient or does it have some more specific meaning?
I think 25 days is too early to try to decide what to do. I cared for my post-stroke father from age 92 to 94, two reasonably good years for him, and then made conscious decision (based, of course, on what he had told me earlier) to let him go after 4 pneumonias and much deterioration. I hope it does not come to that for your father, but it seems to me that decision is farther down the road. Is your mom alive? (Mine wasn't.) What does she say?
Recovery takes a long time, but he can recover. Don't give up hope. He will be very tired for quite a while after the stroke, which is why he does not want to participate in PT..don't let this disturb you. Eventually he will probably get off the feeding tube..they start out with thickened pureed food, then go to what they call "mechanical soft" (chopped up food), then regular food as his ability to swallow improves. It all takes a lot of time and you will hear that all strokes are different..recovery depends on 1. dedication of the family 2. incentive 3. money for cargiving 4. participation on the part of the patient. We have my mother 90 years old at home with us with caregivers 9-5 every day that get her up, showered, dressed, fed and out in a wheelchair every day. She is right side paralyzed and cannot speak at all. We keep hoping. Many of the posts on this site will help you see what others are doing with similar situation. Vicki