I am 28 years old. About 5 months ago I went for my GYN appt. My blood pressure was high so they changed my pills from Ortho-Novem to Ortho-Micronor. I was also put on Tenormin 100mg for my blood pressure. Since then I have not had a period. I have had pregnancy tests by the doctors. That is not the problem. I just don't feel right. I am gainning weight and just feel crappy. My question is not having a period harmful for your body?