### Human:\ncan taking minipress during a heavy period cause increased dizziness and nausea? . my 16 yr. old daughter started taking 1mg of minipress about 10 days ago for nightmares due to ptsd. she felt a little dizzy in the beginning but was beginning to adjust to the medication. she started her period and all of a sudden the dizziness and nausea has gotten significantly worse.\n\n### Assistant: hi you need to get back to your doctor asap this all caused by her hormones kicking in as she is on her period. hope this helps you. good luck