Tetracyclines symptoms and conditions

I've been on doxycycline for two months now for adult acne. My acne got pretty severe, but has calmed down a lot due to the medication. Originally my doctor prescribed me minocycline, which is in the same family (tetracyclines), because of my hunger with the doxycycline. The minocycline gave me an incredibly bad migraine, the worst in my life. I was unstable, and dizzy. After doing research on the net and talking with the pharmacists I work with ( no, i'm not a pharmacist, i am just a tech) we agreed it was intracranial hypertension and that I needed to stop right away. Being on the doxycycline doesn't give me nearly the headache I had being on the minocycline. I found that when I take the doxycycline before bed OR if I am not upright at least at a 90 degree angle, my esophogus will begin to burn.. I usually fix that with drinking A LOT of cool water and it goes away. My doctor told me to take the doxy twice daily, but I find that taking it once daily does the trick for my acne, it just takes a little longer for it to clear up. I guess I'd rather my acne take longer to clear then to have all the side effects everyone else is having.... which I have experianced. But like I said I take it two hours before bed staying in an upright position with lot's of water at hand... and I'm completely fine.

Was given Minocin capsules (3 weeks worth) for prostate infection. After 7 days I felt like I was inside myself looking out and had to strain to concentrate on doing normal everyday things. Tried to write a check at the grocery and could hardly do so without re-thinking how several times. Stopped the Minocin immediately and the symptoms improved in a day and a half. Had taken other tetracyclines previously with no such side effects.