Thanks for writing your query.
Continuous vomitting for one week should be taken seriously and the cause should be identified.
After reading your post, the likely cause seems to be hepatitis
Hepatitis can present as nausea/vomiting
along with generalized body weakness.
Bruises occuring in your body can be due to Vitamin K deficiency, seen in liver damage
You should get yourself investigated for :-
1. Liver Function Test.
2. Complete Blood Count
3. Blood coagulation study.
4. Urine examination.
Treatment can be planned according to the reports of the investigations. You should get yourself examined by a physician.
I hope this is helpful to you.