Hello,
Obesity cause sleepy mood, fatigue, indifferent attitude with acidic disorder. You should go for meditation to reduce your stress making your nerves calm to check sleepy mood, fatigue & litharicity.
Tk, plenty of water to hydrate your body eliminating toxins.
Your diet be easily digestible on time to avoid gastric disorder that triggers sleepy mood. Go for reducing your weight ,if you are obeassed. Tk, homoeopathic medicine:@ AshwagandhaQ -10 drops thrice with little water. Avoid, junkfood, alcohol & nicotine. Tk, care.