How can i deal with this constipation? i haven't pooped in 3 weeks. my stomach is bloated to 3 times its normal size & it hurts to stand.

Enema/ Doctor: The most successful way to combat severe constipation is enemas. These may be repeated until bowels run clear. No harm will come from repeated tapwater enemas. Glycerine suppositories may help. Milk of Magnesia (magnesium hydroxide) by mouth may be tried. Overall excercise, drinking plenty of water and eating ruffage should prevent constipation, but I suspect you may have a problem that needs a doctor visit.