fh will be in a wheelchair soon

I’ve always known it would happen, we’ve known each other pretty much our whole lives. I’ve always known he’s physically disabled. He has Ankylosing Spondylitis and bone spurs in his feet. He can barely walk, each day it gets worse. He needs his cane every day now. He told me that he’s going to need a wheelchair soon, that he can’t move anymore.
You know I knew and expected this, I’m not at all shocked but I didn’t expect it to happen this soon and I feel devastated about it. I’m scared I’m going to hurt him during our first dance. I’m scared he’ll be in pain our whole wedding. I’m scared his health is going to keep getting worse at a rapid rate. I’m ok with being a care taker, I’ve been prepared for it for years but now I have my own health problems. I cannot stand longer than 4 hours. I’m so stressed and upset right now.

These “in sickness and in health” vows are ringing in my head. Of course I’ll marry him and take care of him, but people always think of that vow as “maybe someday”, in the far off future. This is our lives right now.