Hello karlabalino. I am sorry to hear about your encephalitis and your lost memory as well as your newly diagnosed epilepsy. I believe that there could be several reasons for your symptoms and some of those include the encephalitis, depression, and your medications. I would like you to keep a journal of all of your symptoms (anger, irritability, guilt and others), when they occur (days they occur and times of day they occur), as well as anything that tends to make these symptoms worse or better. I also want you to write down in a different section of your journal a food diary. These journals will help your doctor greatly and I want you to take them in with you to discuss. It is possible that one of your epilepsy medications may be causing some of your symptoms such as the irritability with crowds and the inability to follow plans. This is one reason that I want you to keep a journal, it may help pinpoint if there is any relation to your medications. Do NOT stop any medications without consulting your doctor first. Depression can also make you feel irritated and alone. These symptoms include losing interest in activities that interest you, fatigue, feeling guilty, sleeping more, thoughts of suicide and death. Depression can also change your personality. Do you have thoughts of hurting yourself or others?? IF you do, you need to seek IMMEDIATE help from your physician or from your local emergency personnel. Thyroid problems also need to be ruled out as these can cause a lot of the same symptoms as depression. Encephalitis, which is inflammation of the brain, can also change your personality. It can also be deadly and I am glad that you survived. However, before I would settle for blaming it for all the changes, I would want to have all the other causes that I have mentioned above ruled out. Be well, Dr. Kimberly