lets see for me..its was chicken pox with a double ear infection when i was in 4th grade....i lost so much weight from sleeping damn near all day, not eating or anything, and being to be in pain or disoriented 24/7 not too mention itchy
that food poisoning is not joke...3 times ive been poisoned...the first 2 were mild cases...with me throwing up once or twice and i recovered in a couple hours....the last time had me throwing up in the toilet 9 times in the middle of the night...vomiting in the toilet then feeling it about to come out the other end...so i have improvise puking in my wastebasket while taking a violent watery dump on top of the vomit in the toilet....my feces were black with some red in it

..
later i was in the shower and i end up sticking my head out to puke in the toilet and i had little no sphincter control so i ended shytting in my tub accidentally 
...

at having to clean that up...i think i lost like 10-15 lbs in 2 days easy...it was terrible