Hello I appreciate your concern This could be due to nay of these STI or PID Acid peptic disease like gastritis Ornilox is an antibiotic combination which should not be taken without doctor s advise and this may not be recommended in your case I would like further informationto help you better your age and obstetric history are you having diarrhoea or vomiting In my opinion you should consult your doctor for examination and a battery of tests like hemoglobin CBC Liver function test urine culture and an ultrasound if need be Anti acidity medicines may help you You can take Lemon water Hope this helps you follow up questions are most welcome wish you good health regards