do you think I am in sub -healthy ?

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These days i felt tired but I did not do any out- activities .I slept a lot but it relieved my tiredness in vain .At night ,I had insonia with my stomache ,so I took some pills .when I had medecine ,I can fell asleep soon .I don't want to see the doctor and am reletant to tell my parants .I am always in good health ;I even have not caught cold for one year .what should i do ?