Feeling Lost

I am having a very lost feeling. It seems like something which I have to do but I did not do. Or maybe it is something else. How should I phrase it…? Someone’s feeling could be copied and loaded into me and I share the same mood as the someone.

I wanted to ask and do something last (Sat) night, but I do not know why I did not. What is happening to me? Help!

好吗 ? 可以吗 ? 能吗 ?