Hi, Thanks for your question. I do understand your pain and discomfort. As per your history is concerned :- 1)The drug which you are taking is a hormone [ progesterone] and some common side effects of medication is as below- a)GI disturbances b)appetite/wt change C) fluid retention D)Oedema E)acne, skin rash, urticaria F)Depression G)Headache H) fever I)Fatigue J)Breast changes K)Hirsutism L)Changes in libido M)Altered menstrual cycles or irregular menstrual bleeding For abdominal pain and vomiting do- 1)Pregnancy test-To Ruled out conceived or not 2)Ultrasound [TVS] to ruled out various pathology related with ovary,uterus 3)CBC with differential 4)Stool & Urine[RE/ME/Culture] Ask the doctor for which reason they have given this hormone? I hope I was able to address your query. If you have any further questions, please do not hesitate to write to me. Wishing you all the best. Thanks