 [ Symptoms ] my friend has been tired with no energy lately what could be wrong  she is in her late forties she constantly feels tired after coming back from work she has low blood pressure she eats small portions then when pressured to eat more says is full [ Disease ] there could be many reasons for why your friend is tired and does not have any energy i found a good article that offers some really good suggestions though located here encourage her to try out some of these recommendations and to possibly meet with her doctor if the problem persists it is natural for people to feel like they do not have energy on occasion but some modifications with areas like diet exercise sleep or stress might help to boost her energy levels