This will not make the grief easier. While those that die a lingering death often have wills and have told the living what they would like as far as funerals, burial, etc., one who dies a sudden death has frequently not indicated to friends and family how they would like to be treated in death. This presents an extra burden to loved ones, since they are required to go ahead with arrangements under assumptions of what their loved one may have wanted. With our emotional and physical levels depleted, these decisions become even harder. You may find it helpful to discuss your options with a group of close friends that knew the deceased.
Many people report having difficulty with simple tasks.
Losing one's keys, forgetting where you are while driving and sluggish reaction time are all commonly reported problems. With everything you are mentally and physically trying to process, it's normal to be distracted. Take special caution. Try to avoid driving and other activities where these symptoms may cause injury. Let this person help you make decisions, hear your fears or concerns and be the shoulder for you to lean on.