I am sorry about things with your daughter. I can relate in many ways to family not understanding. I have a few thoughts.
Can you sit her down and say what you stated here? That you feel she thinks you should be able to do what you used to and that some days you just are unable? Some times I think we need to say XYZ in exact words of what we can and can not do. Also how we feel. Also the family members need to say how they feel because this does impact them. So maybe you can ask your daughter how she feels about everything that is going on with you? Talking about it is better then keeping things inside.
Maybe you can plan a low key time like a brunch at your house?
I think it is great you joined a wellness center. With this condition there is only so much you can do. It sounds like you are being pro active in getting to a better place. You should be proud of yourself.