Hi Rana, welcome to CD and well done on your fabulous loss so far. Which plan are you doing? If you are on SS then ketosis should not be making you feel sleepy. Are you drinking enough water - if I feel a bit tired another couple of glasses of water generally help me to feel a bit more lively. Are you exercising? If you are very active sometimes SS is not the right step for you as you shouldn't really be doing too much strenuous activity while on a vlcd. Perhaps your CDC could give you some more advice?
Hope you keep going though because your results have been wonderful