It's become so commonplace that I found myself saying and thinking "Yeah I'm totally fine today, this is a great day, symptom-wise". 

In practice, this is my day today: 

* Pretty bad headache
* Lower and upper back pain, and shoulder pain
* Tired eyes, sleepy, yawning often
* Minor ear ringing
* Barely able to concentrate on work, I can get into the "hyper focus" sometimes and do a good 15-30 minutes of work (writing) and then I need a freaking break, God forbid something distracts me for 1 second, work flow is gone for at least another 15-20 minutes, sometimes an hour
* Overall confusion, just thought it's like 11AM, then I checked the time and it's 2PM, I feel lost in space/time, and then again I feel totally fine at the same time 

Basically I feel like I partied, drank, and smoked heavily until 6AM and now am trying to work.

What I actually did last night:

* Had good 7-8 hours of sleep 
* Took a refreshing shower 
* Did some 10 mins of exercise 
* Decently healthy, light breakfast 
* Drank water as much as I felt I needed to
* Got into my car and drove to my office 

And why do I now feel like I've been beaten all night or fallen of a 2-story building or been awake for 30 hours straight? 

I am 30. Concerning physical health - Alhamdulillah (thankfully) all's well, I had many, many checkups over the past few years. Except of course in mental health, GAD and panic disorder diagnosis for the past 7 years. 

Medication: 

* Doctor suggested giving Zoloft + Xanax a try. Been at it for 2 months, 50mg Zoloft and 0.25 mg Xanax every morning, plus 0.25 mg Xanax before sleep or on occasion to combat panic feelings

I just wanted to express myself and possibly hear if others with GAD have these periods. This happens every year for a few months more or less