I've been taking doxycycline for a couple od years for rosacea wi...

I've been taking doxycycline for a couple od years for rosacea with no ill side effects other than sun sensitivity.But last week I woke up in the middle of the night with acid reflux-like symptoms that have gotten worse by the day. Now I have sharp pains in my chest every few minutes, nausea, dizziness, blurred vision. 2 different doctors suspect doxycycline, saying its notorious for esophagusitis. It is too painful to eat or drink. Has anyone else had such serious and painful side effects?