addiction withdrawl

I am looking to help my mother. We recently disconnected the internet because that is the only thing my mom ever does since getting really sick last year and being in the hospital for a month. Needless to say, she isn't very happy. She is constantly saying 'it is of no use'. She is only 65 and feels like her life is over. My father died suddenly at 55 and she feels that every year past that is lucky so to say. She has varying moods, going from laughing highs to severe lows when she thinks everyone hates her and that she is unwanted. She gets so upset that her whole body can start shaking, she gets head aches on the top of her head and temples and her hands go numb on both sides. She usually says that she is going to leave and go some where were she is wanted and goes out for a walk until she calms down. She always feels better after. Usually, however, she sits by herself in her bedroom with the door and windows shut because she is scared that if she gets any drafts she will get sick. She is very fearful of copd weather and is afraid that if she goes out she will get a lung infection, which she is prone to, mostly during rainy wet weather not during dry cold. She doesn't drink a ton but has sweet cravings and can finish a things of ice cream one small bite at a time. That is all I can think of to mention right now. We really want to help her so suggestions as to which remedy would be of assistance would be greatly appreciated.