Thanks for writing your query.
After reading your post, it seems that you might be having bleeding from gastric ulcers
, appearing as red spots in your vomitus.
I would suggest that you should get yourself clinically examined and investigated.
may be helpful.
I would advise that you should take an antacid like Omeprazole
40mg once a day before meals along with Domperidone
Antacid in gel or liquid form is also helpful.
Following precautions will be helpful :-
1.Avoid spicy and oily foods.
2.Avoid being empty stomach for long periods.
3.Avoid mental and emotional stress.
4.Avoid smoking and alcohol, if any.
5.Avoid self medications, especially pain killers and steroids
6.Drink lots of water daily.
7.Eat light meals prepared under hygienic conditions.
8.Curd can be helpful.
I hope this is helpful to you.