It is a very low dose of HRT and shouldn't really have given such a big reaction. I do wonder if you simply have a tummy bug or virus as there are a lot around at the moment. I wouldn't stop straight away - give it some time. Do make sure you take the pills with a meal as well. I can't remember when her you had tried HRT before and if so what you used but you are very post menopause and your body will react to the hormones at first e.g. cramps, sore breasts, maybe some headaches, vaginal discharge etc. and this is the body waking up and adjusting. If you fainted, then this could well be lack of fluids and food. DG x