Tired, lightheaded and with no desire for appetite?

[Ilija]

Hi everybody, I've been feeling very tired, lightheaded and no desire for appetite for almost a week now. I get more than enough sleep but even after getting up I feel quite tired. I haven't seen a doctor (plan to), just been taking some vitamins and minerals. I feel very low on energy constantly for the past week. Any advice would be more than welcome. Due to my situation I started feeling very down, not knowing when I will start feeling better. If someone has been through smth similar pls advise. Thanks. Ilija