Hello and welcome to the site. There are a lot of wonderful people here.

I hear grandkids are great! My first is due in July it's a girl.
I'm sure your husband leaving wasn't easy. My physcologist told me there are 3 types of spouces when one gets sick. He will stay and pretend there is nothing wrong (not helpful at all), he will stay and support you all the way or he will leave. I'm sure it was part of God's divine plan for you that he leave.
I'm sure you already know the best person on your support team is God. He gives a peace of mind (just like he say's he will) that passes all understanding.
Once I got out of denial and gave my burden to him positive change started happening. I had been to approx. 15 doctors (it's almost 1:00a.m. the exact number won't come) my regular primary care doctor was on vacation. I was miserable and begging for some kind of relief. So his partner saw me he walked in the room and said I know someone who studies RSD and can help you. I had been going to that office for months and getting nowhere. I don't think it was fate my regualar doctor was on vacation. It was God answering my prayer for help. I had reached a point of suicide and was on my way to the garage to start the car when the Holy Spirit stopped me and I dropped to my knees and gave into "his will". God doesn't want his children to suffer he's just waiting for us to let go and let him have control.
May God continue to bless you,
Sherrie