Hello and welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Nothing to worry much at the outset. Depression might b your problem as ur staying alone all the time. Try to engage yourself with others past times like reading or watching tv or listening to music or walking in the park outside. I’m sure this will help you a lot. Now coming to medical issues if ur having forgetful ness then it might because of your age or even your symptoms may b of Alzheimer’s disease. Just get an MRI brain done to rule out this and engage yourself with other activities and have a happy life ahead . Hope I have answered your query. Let me know if I can assist you further.