Levaquin and doxycycl

I also experienced loss of appetite while taking levaqin by the fourth day. I was given the prescription after apparently having a relapse of a sinus infection. I now have chest pains, difficulty breathing, fatigue, and I now ralize, the pain in my right hand the first night after taking this medication, could also be attributed to this drug. I contacted my doctor today to let him know of my side effects. Since I also have fibromyalgia, I was under the impression all of my symptoms were due to it except the loss of appetite. My doctor changed my medication to doxycycl. I am about to check the net on it, too. The pharmacy gave me a printout and it lists the same side effects. By the way, I also got the "weird" feeling and my stopped up for no reason, and I felt like my heart would race at times.CathyN