So I have been taking Doxycycline, 100mgs x 2, once in the morning and once in the evening. After 3 days of extreme fatigue, dizziness, headaches and a bunch of other symptoms, I decided to pulse dose the remaining regimen. I still have those feelings, even now, when taking the meds. Has anyone else experienced this? Im a little disoriented and confused and have head pressure as well. I have a feeling of a "hat band" around the back of my head also. Thanks guys!