I cannot find any reason in your horoscope for any thyroid problem and there are no obvious causes for the stomach problem too. Possibly it is just a passing phase and you may better resort to holistic treatment details of which are available on the net. May be you can try homeopathy too.
i would like to re verify my birth date is
7th april 1991 ,
yes i am trying homeopathy as you said.
is it possible because my lagna lord mercury is in 8th house, could this give me health problems?