Hello, thanks for the query to H.C.M. Forum.
Whatever we eats 4-5 hours before, any vomiting
means some thing was wrong in food i.e. poison of course mild degree.
2 nd reason may be due to over eating previous day.
3. Bloody diarrhea means dysentery
, in your case there is mucus also as you saw over tissue paper in toilet.
So only way is here to drink plenty of water that too mild hot water .
You can also have salt & sugar with lemon 2-3 in each 100 ml.
Drink liquid more and more.
Within 3-4 hours you will be alright.
If still no relief than consult a doctor and have an advice.
Good luck. Dr. HET