Mopsey, Hope made some excellents points. When your h offers to do something for you, let him. Don't mention anything about the weather and him being on the road. Remember, you are not his mother. He needs to make the decision to drive or not.
I agree w/Hope, he wants you to ask about his appointments and he wants you to know that he's willing to try meds. He's reaching out a bit and is hoping that you'll have a conversation w/him about it. Next time he raises the issue, talk to him about it. When they open the door for conversation, you have to step through and follow his lead.
As for the mow, leave her in the snow. You are still giving her far too much power over your thoughts.
Drive safely tomorrow!
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.