Forgetfulness. Me what should i do?

I am 25 years old baby nursing mother. My daughter is now 1 years old. Since last 3 months I am suffering from the problem of forgetting. I forget things. Even I think about 2 min before. And before marriage I had a very sharp mind. I was very good in studies. After my marriage it is started that I am forgetting thing. Sometimes it is very dangerous. I forgot to off gas stove . Now I am scared about my future. My baby could be affected with my forgetting problem. I think I will do it and I forget. Yea I have some family problems also. I always think about somethings. Which are hurting me. I am always in a deep thinking. I am alone at home I have no one to share my feelings and pains. Now please you suggest me what should I do?