Prohibition of Fasting for a lifetime for the one who will be harmed by that or who will neglect other duties, or does not break his fast on the two 'Ids or during the days of At-Tashriq; It is better to fast alternate days Sahih Muslim 1159 i
Translation
This hadith is narrated on the authority of Habib b. Abu Thabit with the same chain of transmitters and he said
" And you would become exhausted."