This is exactly what is happening with me. My recurring symptoms started up back in February. Over the course of the last few months, I ve had a multitude of symptoms: Palpitations, abdominal pain, back pain, numbness/tingling in legs/feet, burning in the feet, chest pain, joint pain, muscle pain, fatigue, low-grade headaches, indigestion, night sweats (but not very many of them and not for awhile now), chills, hot flashes, frequent urination, conjunctivitis, ringing ears, and painful testicles. So basically, I feel whatever I have courses through my body because my symptoms change from week to week. Some days I feel like I m recovering and then the next day I m dragging. Or sometimes it works in half-day intervals. Pretty much all of my testing has come back negative: gobs and gobs of blood work, CT of chest and abdomen, head MRI, EMG of major leg nerves, echocardiogram, heart cath, chest x-ray, lumbar spine x-ray, holter monitor, urine tests, ultrasound on thyroid, and upper GI. Findings, not much: low potassium (briefly), low vitamin D, moderate acid reflux, mild gastritis in stomach, small kidney cysts. Some numbers on my bloodwork at times were a little out of range, but most of my CBC s have been within range. The one item that has stood out is my EBV test results. The antibody testing shows that I contracted EBV a long time ago, but all of the current antibodies has high titers. My symptoms started since last year, 2015 in May and is worsening.