Doxycycline causing unexpected side-effects
Yesterday, I found a tick embedded in my skin, and the doctor immediately put me on doxycycline, 100 mg twice a day. However, it seems I'm reacting like I'm herxing (as in Lyme disease), after reading others' symptoms.
I've been tested for Lyme's three times in the past few years with different types of tests and I've never shown any sign of infection. My temp is usually lower than normal, I have no rashes, no headaches, no stiff necks, no numbness. I've had fibromyalgia all my life, so that blurs with Lyme symptoms - problems getting good sleep, tight painful muscles, overall body ache - but those I've had all my life.
A few hours after my first dose of doxycycline (which was doubled to 200 mg to "start aggressively"), I woke up with a horrible pain in my upper left chest and shoulder area - fearing heart attack, I soon realized that all the pain was actually in my ribs or between them - I thought I had somehow cracked them! A couple of hours after taking a normal dose of aspirin, the pain went away - completely!!! I've never had anything like this before!
But I've also felt drained, exhausted all day, and slept too much, like I've taken a sleeping pill or something. My voice also sounds unusually hoarse. The only good thing is the doxy doesn't make me nauseated when I take it on an empty stomach with a full glass of water - no headache either.
Could I have developed the first stage of Lyme's in just a few days and am I already herxing? Or am I just reacting to doxycycline? I remember taking it before, years ago, for something else, and I just recall that it made me feel "lousy", couldn't wait to finish it off.
Any comments or similar experiences welcome.
Last edited by Vocrinthedes; 05-21-2012 at 05:30 PM.