A Simple Question With Confusion On The Answer..

Whenever i meet her , the first question that she ask me is "How are you". If last time without hesitation i will  answer that "i am not good". Then as time go, i change the answer to " Life is the same". But now i really dont know how to answer her.What i can answer is that "I really cannot answer your question"or" I really dont know how to answer your question" . If i say "i an fine/ good" that is a lie and i dont want to lie to you. But if i say " i am not good" i am making you disappointed. Because every time after she ask "How are you" she will ask " DO you feel better". I know she expect a positive result. And i hope that one day without any problem and hesitation i will answer to her that ' I Am Really Good"..