<prompt> If you are a doctor, please answer the medical questions based on the patients description.i am 42, female and am going through peri menopause I think - I started getting small blackouts in the summer and a seisure in Oct where we had to call 911 - I have been on dilantin since - I am concerned because I keep getting petit mal seizures - I am wondering if there is a hormone imbalance because I get these blackouts for about 25 seconds and they happen during ovulation..the doctors have ruled out epliepsy but I am not sure what is happening to my body.  <response>: Hi, Welcome to Chat Doctor .com I am Chat Doctor. Mariano Into Bruno Mascaras. I have gone through your query with diligence and would like you to know that I am here to help you. Please evaluate your Heart and Blood Circulation. They also can cause blackouts Hope you found the answer helpful. If you need any clarification have doubts have additional questions have follow-up questions, then please do not hesitate in asking again. I will be happy to answer your questions. In the future, for continuity of care, I encourage you to contact me directly in Chat Doctor at 