Nice to meet you Sandra. PH1.5 is a way of eating that adds back a few PH2 foods but limits the quantity. It is not an official phase, just something a lot of us do. I prefer to be on PH1.5 most of time because I think I have better willpower and don't overeat as often when I limit my grains.
If you hang out here often you will find lots of encouragement and tips. My advice.... come here often! It has been a great motivator for me. I also lurked for years.
I wish I could offer you exercise advice because I can identify with you, since I broke a bone a while back and have been restricted as well. But I am able to still walk and get on my elliptical. Maybe you can ask your PT or doctor what you can add. Possibly you can do some upper body strength training at least. Or something like chair yoga? In the long run, you are better off to heal completely then get started gradually.