I have had problems with anxiety for almost ten years and it got slightly worse 3-4 years ago and that constant fight/flight state has been going on for 1-2years with differing degrees of severity. This combination of those things makes that concentrating on things is extremely hard, not getting much pleasure from anything, sleeping only 4-6hours per night while only staying asleep for 30-60mins max  consecutively among other things. I have been working out for 2,5years now. Resistance workouts 3 days a week and about 2hours per session. 

I discovered that workouts had something to do with this as I just did one week off from training and after few days had passed, anxiety lowered by pretty significant factor and that fight/flight state also lessened in severity and maybe not so constant at some points either and I could sleep almost 8hours while only waking up few times per night. And when I got back to working out those symptoms came back few hours after the first workout.

Now I started an 2 week off period to see if it would fix this or not. I would not want to quit working out as I have made some progress. So I wanted to ask if anyone has ever dealt with this kind of situation and/or if there is any possible fix or advice?