Sir I Am 35 Years Old; During/after Fever, I Always

Sir I am 35 years old; during/after fever, I always feel as I have consumed some intoxicant " nashe ki condition" and I cannot work and feel sleeplessness. My fever is cured by docter and doctor stop medical treatment. But feeling of intoxication and sleeplessness remains for many day...even for months. Some time I am again suffered from fever. During this problem I need 10 to 12 or more hours to sleep. After sleeping I feel fresh for 1/2 or 1hour and after that I stared feeling as I am in condition of "Nasha" and sleeplessness "onindra" . my mind works very slowly. I feel as my mind is hanging. Sometime, I need some time to think and reply a simple conversation. My mind start working very slowly. This situation starts after/ during fever. Some time it is removed by exercise for long period. I feel relaxed when I use calcium powder in milk and when I use bicasule capsule. Is it an problem caused by tiophyod. As it always come after fever. Or it is because of lack of calcium. Then why it occour only after fever?