I ave been experiencing horrible headache for some time, tightness in chest, and achy feelings in arms, legs,. Am on a 3rd round of antibiotics for sinus infection and prednisone thru my ENT Dr. Been on this for 10 days. He gave me 21 day prescription. I feel achy, fatigue, and last night I was drifting off to sleep and had horrible stiffness in my jaw and mouth and felt like I was going down in a tunnel. I also have a cyst on my pineal gland in my brain. Had an mri 3 years ago. I am a healthy 59 year old woman who only takes Zoloft. I am not a smoker or drinker. I just feel horrible.