I have found this is a common side effect of anxiety. It takes a lot of energy to be anxious all the time. We tense our muscles, hold our breath or breath shallow, worry constantly, etc... with all that going on we are bound to be exhausted. I usually say that the effort I put into anxiety is like putting all that effort into pushing on a wall. At the end of the day I will be exhausted but the wall would not have moved with all my effort.

I have the same problem--whenever I get stressed--or am recovering from stress I feel like I am coming down with the flu--and then it just goes away---I always assume first now that it is stress and do things to calm that--(used to just think I was always battling germs) if I start to feel physically better then I know it is stress...I do meditation, deep breathing, exercise, and sometimes yoga if it is really bad....

HELLO.I TO GET TIRED FROM ANXIETY IT TAKES SO MUCH OUT OF US AN OUR BODY IS JUST WORN OUT FROM ALL THE STRESS AN PANIC IT WAS UNDER HOPE U FEEL BETTER

you may also have a vitamin deficiency have you had your blood tested?

In my worst years, while battling with my mind (OCD and GAD) all day, I would sleep for 8 hours but when I awoke the next day, I would sometimes feel like I had not slept at all. I felt exhausted.

I do not think it is rocket science that if we can tire out our bodies by overworking or over exercising one day and feeling it the next, why can't that be true for our minds? And we know how much our minds can affect our bodies. So, if we have anxiety and fear shooting thru our nerves all thru our bodies why wouldn't that affect how we feel physically?

I have read where people who suffer from depression feel a physical pain at times.

Mind/body connection?

I'm like this to. I get multiple different symptoms all the time. Its like our body is in overdrive all the time and after we are tired.