I suppose the answer to whether you will cause damage depends on how advanced your AS is. Unless you have a lot of fusion then no it shouldn't cause damage providing your car full. Perhaps your trying to do too much too soon cut back a bit on the amount your doing then as you feel better try building it up again. I know its frustrating for you but its all about control of your limits.
I wish I could do more I hate being like a rigid stick but in my case its a no no.

Kevin