Went to put my son to bed last night and he got sick so I gave him a bath we laid down and relaxed…

Went to put my son to bed last night and he got sick so I gave him a bath we laid down and relaxed half hour later he got sick again and there was blood. I freaked out and took him in they said he may have a virus and gave him a zofran for vomiting and waited to see if he could hold fluids down. Sat at SO work for 30 mins til he got out at 12:30 and then came home and cleaned my room then went to sleep.