I have done as recommended and took the birth control pills. I got them over-the-counter. The brand name is called Mercilon. I took first four pills at 5 PM, second four pills at 9 PM and the third set of pills at 2 AM. Now, after an hour, I am feeling rather lightheaded with increased heart rate. I also feel nausea, but you said to expect that. Also, I have not had any sleep since almost 36 hours, because I am so anxious. So, may be that is contributing to the discomfort. Considering the lightheadedness and increased heart rate, should I continue with the fourth dose of four pills at 6 AM?