I m 28 male. Went to work feeling fine at 8 am. Was using bathroom & felt headache start at 930. Was a little constipated & pushed harder than usual. Headache got worse, accompanied by dizziness, shortness of breath, & nausea, feeling like I could pass out. Left work for home to sleep at 10. Vomited though I had eaten nothing. Was very pale with dark bags under eyes. Took temperature several times: 96.7, 96.3, 96.0. Usually have lower than average temp but not so low. Headache was in front, top part of head. Also behind right eye. Slept few hours & feeling better except still slight headache. I was worried about aneurysm from bowel movement. Was told by friend sounds like migraine. Never had that before. Any info is greatly appreciated.