I started taking doxycycline just 9 days ago,I couldn't believe it when I read these posts..I am having alot of the same symptoms as the rest of you. I have been getting sick to my stomach, no matter if i take it with food or not...more so if i don't take it with food. I have ringing in my ears..icy/hot flashes, headache and my eyes hurt. I am not sure if this med is worth all these side effects. I am taking it for adult acne. I also noticed that my face is quite red and sore to touch.I will give this med a month or two and if i don't see considerable improvement, i will stop taking it. I feel miserable.